USE OF TOXINS AND OTHER LETHAL CHEMICALS IN SOUTHEAST ASIA AND AFGHANISTAN

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March 2, 1983
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Director of Central I Intelligence Use of Toxins and Other Lethal Chemicals in Southeast Asia and Afghanistan Special National Intelligence Estimate Memorandum to Holders APPROVED FOR RELEASEL DATE: 16-Dec-2010 SNIE 11/50/37-82 2 March 1983 COPY 3 7 1 end IE L) ATIONAL SECURITY INFORMATI nauthorized Disclosure Subject to Criminal Sanctions L MEMORANDUM TO HOLDERS SN I E 11/50/37-82 USE OF TOXINS AND OTHER LETHAL CHEMICALS IN SOUTHEAST ASIA AND AFGHANISTAN Information available as of 2 March 1983 was used in the preparation of this Estimate. THIS ESTIMATE IS ISSUED BY THE DIRECTOR OF CENTRAL INTELLIGENCE. THE NATIONAL FOREIGN INTELLIGENCE BOARD CONCURS. The following intelligence organizations participated in the preparation of the Estimate: The Central Intelligence Agency, the Defense Intelligence Agency, the National Security Agency, and the intelligence organization of the Department of State. Also Participating: The Assistant Chief of Staff for Intelligence, Department of the Army The Director of Naval Intelligence, Department of the Navy The Assistant Chief of Staff, Intelligence, Department of the Air Force The Director of Intelligence, Headquarters, Marine Corps mycotoxins have been identified. In Laos, Vietnamese and Lao troops, under Soviet supervision, have continued to use lethal and incapacitating chemicals and toxins against the H'Mong resistance, through at least December 1982.0 In Kampuchea, the Vietnamese forces have continued to use lethal and incapacitating chemicals and toxins against the DK and KPNLF resistance forces, through at least February 1983 In Thailand, in 1982, Thai villages near'the Kampuchean border for the first time became targets of Vietnamese chemical attacks. Samples from these attacks have been analyzed and trichothecene able to identify them through sample analysis In Afghanistan, the Soviets have continued to use chemical agents selectively, through at least January 1983. Analyses of physical samples have, for the first time, provided evidence of mycotoxins. Chemical agents other than toxins have also been used, but we have not yet been events of previous years as well as events occurring during 1982 In the year that has elapsed since the publication of SNIE 11/50/37-82, the use of chemical and toxin agents has continued and we have found nothing in the'evidence acquired since the beginning of 1982 that would contradict our earlier findings on any of the countries with which we are concerned. The evidence has continued to come from many different sources and has amplified our understanding of analysis broadly supportive of US conclusions Physical samples from both Laos and Kampuchea provide further confirmation that trichothecene mycotoxins are among the agents used. Our earlier conclusions on this have been reinforced by much better medical data and additional chemical analyses and special intelligence. Toxins have been found in urine, blood, and tissues of victims of "yellow rain" attacks and in samples of material collected from attack sites.C Soviet implication in the provision and use of these weapons continues to be supported by special intelligence and by reporting from defectors, resistance groups, and refugees= In 1982, independent investigations conducted by other govern- ments-notably those of Canada, the United Kingdom, France, and West Germany-as well as by private groups, yielded evidence and 1 _3ECRET1 Page 2 Intentionally Blank analysis of a Soviet protective mask has revealed the presence of T-2 toxin (sample 7, annex D, table D-3), in a quantity of approximately 1 microgram on the area examined (one-fourth of the mask). This finding was confirmed independently by three different lab- oratories. In Afghanistan 10. The Soviets have continued selective use of chemical agents throughout the past year against resistance forces and against villages that did not cooperate with the Afghan authorities. Reports during 1982 have amplified and added credibility to our earlier findings. In Afghanistan there is no question that the Soviets themselves are using chemical agents and possibly toxins. In addition, we continue to receive reports that the Soviets have provided chemical agents to the Afghan forces for use against the Muiahedin.[ 11. For the first time we have evidence of the presence of trichothecene mycotoxins in Afghanistan, through the discovery of toxin contamination of a piece of Soviet protective equipment. Laboratory ably have been used since 1980." 13. Reporting from Afghanistan had long included descriptions of events similar to the "yellow rain" attacks reported from Southeast Asia. However, be- cause of the remoteness of attack sites and difficulties in sample collection, we have been unable to obtain physical evidence of the presence of mycotoxins in Afghanistan until the recent confirmation of the pres- ence of T-2 on the Soviet gas mask. This now greatly strengthens our previous assessment that "toxins prob- Mujahedin have been accused of using 12. Also for the first time, the United States ac- quired a large quantity (34 sets) of new (unused) Soviet gas masks, canisters, and complete protective suits captured from a Soviet convoy by Mujahedin forces in August 1982. No information on the location of the attack or intended destination of the convoy is avail- able. It is reasonable to hypothesize that the Soviets would not provide such protective gear to their forces in Afghanistan unless they anticipated a need for it- that is, for use in connection with employment of CW agents and weapons. Comprehensive protective gear of this sort would not be required as protection against the kinds of nonlethal riot control chemicals that the 14. The biggest mystery remains the identification of the other agents being used. Some familiar CW agents can be inferred from descriptions of signs and symptoms, For example, the medical effects resulting from some chemical attacks are consistent with the use of the nerve agent tabun. (Reportedly, tabun is one of the, agents present in the CW stocks maintained by Soviet forces in Afghanistan.) Other reports indicate use of an incapacitating agent that causes unconscious- ness for several hours 15. As early as 1980 we began receiving reports of Soviet forces dropping or pumping one or more chemical agents into tunnels, caves, and underground waterways where resistance forces and their families take shelter. Reports of those incidents contain de- scriptions of symptoms that have puzzled the experts. Of particular concern are reports of rapid blackening and decomposition of tissue, a description that fits none of the CW agents known to us. The frequency 4 3FCh`6~ and consistency of these accounts from many different tribal groups have led us to conclude that they must be taken seriously and that we may be dealing with a new class of chemical or toxin agent or with combinations not previously known to the West. In one case, US intelligence officers interviewed eyewitnesses who re- ported that gasoline and probably diesel fuel were poured into tunnels and ignited with incendiary pow- der and shells. The number of deaths and condition of the bodies were consistent with fire and asphyxiation. 16. There has been no change in the manner of dissemination of the chemical substances. The pre- dominant delivery system still appears to be helicop- ters firing CW rockets, dropping chemical-loaded bombs or canisters, or spraying chemicals directly.F_ Findings From Other Countries 17. There is a growing body of international evi- dence that supports the US findings of chemical weapons use. Non-US private experts and governments have collected and independently analyzed samples and have obtained testimony from witnesses of attacks and from medical personnel. A few examples follow. 18. Non-American physicians with good credentials in tropical medicine have testified that they have treated chemical warfare victims. For example, a French physician has provided testimony on his treat- ment of victims at a Kampuchean hospital. Similar testimony came from a Swedish International fled Cross worker in Kampuchea. A New Zealand doctor and his British associate at the World Vision Hospital at Ban Vinai refugee camp are convinced that H'Mong villagers are victims of repeated chemical warfare attacks in Laos. An increasing number of these physi- cians have made strong public statements and, to date, not one doctor who has examined victims claiming CW injury has publicly or privately disputed his claims after examination. 19. Two French physicians who worked in Afghan- istan described the unusual wounds caused by what they believe were poisoned bullets. French scientists have found trichothecene toxins in samples from Southeast Asia. Thai scientists have reported finding mycotoxins in their samples. 20.I lofficers acquired portions of gas masks from attack sites in Afghanistan. The tests conducted on them are as yet incomplete, but early indications and some signs and symptoms of persons handling the contaminated masks suggest that chemical agents were used in the attacks 21. Several carefully done epidemiological studies have been prepared by Canadian governmental and academic institutions. Their findings are consistent with ours on all but technically minor points. 22. The December 1982 report of the UN Experts Group provided as much support as the United States could reasonably expect from such a multilateral entity. The document supported individual US claims in more than a dozen specific technical areas, faulted the Soviet "scientific explanation" in strong language, and declared other hypotheses (other than use of CW) to be remote and inconsistent with the human testi- mony and the laboratory data at hand. Its failure to support the US charges fully was attributed by most of the world press to the political-not scientific-inhibi- tions of the Experts Group. Implications for Intelligence 23. The fact that chemical and toxin agents con- tinue to be used in Laos, Kampuchea, and Afghanistan despite a highly publicized UN investigation, diplo- matic pressure on the Soviet, Vietnamese, and Lao Governments, and growing international acceptance of the evidence suggests that the perpetrating govern- ments do not believe that their activities are as yet sufficiently damaging politically to warrant their ter- mination. This is not to say that Moscow, Hanoi, and Vientiane have ignored the charges being levied against them. But rather than stopping the illegal use of chemical and toxin agents, they have launched a major propaganda counteroffensive. 24. In May 1982 the Soviets submitted a "scien- tific" study to the UN blaming the toxin poisoning in Laos and Kampuchea on US use of herbicides during the Vietnam war. The Soviet study claims that wide- spread use of herbicides allowed toxin-producing fungi to flourish in Vietnam. Winds then allegedly blew the spores into Laos and Kampuchea, contaminating the environment. It is surprising that the Soviet Academy of Sciences would lend its name to the production of such a scientifically indefensible paper. Nevertheless, the overall Soviet counterpropaganda effort has not been without effect in diverting public attention away from the Soviet actions and focusing them on the 5 SE proposed US chemical warfare modernization pro- gram and on past US use of herbicides in Vietnam. An international scientific conference was held in Ho Chi Minh City (Saigon) in January 1983 to call attention to the long-term effects of herbicide use on nature and man. 25. The comprehensive assessment of the CW evi- dence that the United States has published and briefed worldwide in classified and unclassified form has helped to persuade many governments that lethal agents, including toxins, are being used and that the Soviet Union is implicated. There is a reluctance on the part of most governments, however, to levy such charges publicly. Governments are loath to take a public position on the issue because to acknowledge that the USSR has violated its international commit- ments is to call into question the trustworthiness of the USSR as a party to arms limitation agreements. Even the most conclusive and incontrovertible intelligence evidence is unlikely to galvanize other governments into forceful public positions on an issue that has such politically unpleasant implications.fl Afghanistan 12. The evidence from Afghanistan is different from that from Southeast Asia. It has been impossible to obtain fresh samples of any type. However, report- ing on chemical attacks comes from a wider variety of sources throughout the coun- try provides evidence to corroborate HUMINT report- ing. F_~ 13. I I in September 1981 a Soviet helicopter sprayed a yellow mist in Paktia Province (Sheik Amir, 3315N 6949E) that caused 16 deaths. The survivors had bloody tears and noses; extensive bleeding was reported in those who died. described a similar attack in Nangarhar Province in the same month, in which four persons were killed.= 14. Since early 1980 we have had numerous reports of Soviet use of chemical agents on resistance forces and their families who were hiding in caves, tunnels, and underground waterways. A HUMINT source C says that, on 20 September 1982, Soviet soldiers poisoned underground waterways in Lowgar Province south of Kabul where the Mujahedin were hiding. A Mujahedin commander in Pakistan reported a similar event in the same province on 13 September, which resulted in the deaths of 60 men and 13 children. Both sources described a chemical substance being pumped through a hose from an armored vehicle into the waterways. Furthermore, villagers who have witnessed Soviet operations against underground waterways have pro- vided testimony at international meetings describing in detail how the Soviets have used chemical agents and explosives in this way. Moreover, a Cuban emigre A-2 SE _nrRf4_ trained in the use of Soviet chemical weapons has previously described a dissemination technique that involves pumping lethal gas through a hose 15. In both of these September attacks, the victims' bodies reportedly decomposed rapidly, and the flesh peeled away when attempts were made to move them.' Since 1979 Mujahedin resistance leaders, refu- gees, journalists, and Afghan defectors have described chemical attacks that caused almost identical symp- toms. Most reports have portrayed the skin as being blue-black after death. Such symptoms seem bizarre, but the large number of reports from a variety of sources suggests they cannot be dismissed as mere propaganda. For example, an Afghan pbserved a victim of what he believes was a chemical attack. The patient had blackened skin, which was very shiny except for a large number of spots all over the body. F_ are inadequate to allow us to hypothesize about the contents beyond that 18. The British journalist who interviewed the So- viet defector cited above also reported on two attacks he had heard about from other sources. One was an attack in the spring of 1982 on Kaiba, where Soviet soldiers shot victims rendered unconscious by a gas. The other was near Herat in the summer of 1982 when Soviets reportedly loaded the bodies of victims of a gas attack on a truck and took them away, possibly for autopsy 19. An Afghan told US officials on 5 October 1982 tha 15 Mujahedin for red skin lesions which he said were caused by Soviet CW attacks in Qandahar Province in May or June 1982. The Mujahedin claimed that Soviet helicopters fired rockets which emitted gases on im- pact-black, yellow, and white in color. Three Muja- hedin died within 12 hours of one attack, in the causes the flesh to become very soft More recently, a Soviet soldier who defected to the Miujahedin said in a press interview that a Soviet CW agent called "smersh," which is "100 percent lethal," 16. The defector also said that the Soviets had stores of "picric acid," "smersh," and an incapacitating agent in Qonduz and Kabul. In a subsequent interview it was determined that the "picric acid" referred to was chloropicrin, an extremely strong irritating agent with an inhalation lethality nine times greater than that of chlorine. The defector said that "smersh" was delivered by rockets fired from a helicopter and that chloropicrin and the incapacitating agent were con- tained in cylinders and released through a vent in the aircraft. Several Mujahedin have described tanks or cylinders outside helicopters from which chemicals are sprayed. 17. Further, the defector reported that chemical agents had been used in June 1982 on a highway between Termez and the Salang Pass north of Kabul. He stated that the Soviets have been preoccupied with protecting the roads and that chemicals were sprayed by planes along the areas adjacent to highways. Chem- ical grenades reportedly have been used. We suggest that the grenades contain toxic smokes, but the data Y In the late 1960s, the Soviets reportedly tested a chemical agent that killed dogs immediately and decomposed their flesh within a half hourl 20. In early December 1981 a group of 15 refugees attempting escape to Pakistan were attacked by a helicopter using gas that killed four or five of them (youngest and oldest) and rendered the rest uncon- scious for five or six hours. The attack occurred about 60 kilometers northwest of Jalalabad. 21. 1200 to 300 gas containers at Qandahar Airport that were painted in greens and browns. The containers generally were 35 to 40 inches high and about 26 to 30 inches in diameter. (This size generally matches that of contain- ers known to be used by the Soviets to store CW agents in their chemical depots.) A friend said that the containers held chemicals used against the Afghan resistance. He described three types. One caused burning in the throat and suffoca- tion, one caused what looked like smallpox and blister- ing, and the third made victims tired and sleepy so that they could not run or fight. Further, the friend stated that the containers are put into special casings that are dropped from aircraft and explode on impact, emitting a large cloud of smoke, usually yellow, but sometimes other colorsF 22. Mujahedin sources described tanks firing gre- nades in August 1981 in the Arghandab Valley which produced a foggy mist that rendered 10 members of the resistance force unconscious. The Soviets carried their lifeless-appearing bodies away in armored vehi- cles. ANNEX C DETAILS OF CHEMICAL ATTACKS This annex comprises four tables (C-I, C-2, C-3, and C-4) providing detailed information on CW attacks in Laos, Kampuchea, Thailand, and Afghanistan-loca- tion of attack, source of information, method of delivery, form of chemical, and number of casualties. Table C4 Afghanistan: Summary of Chemical Warfare Attacks, 1982-83 Date of Source of Form of Attack Location Information Delivery Method Chemical Persons Killed Persons Taken Ill Early Feb North of Shindand 4, 5 Feb South of Shindand 19 Feb Badakhshan Province 2nd week of Vardak Province Afghan exile Helicopters with Blue smoke 300 Apr bombs May Badakhshan Mujahedin Helicopters Smoke-producing ? Province bombs (blue- green) May-Jun Qandahar Mujahedin Helicopter Black, Yellow, ? Province rockets white gases 5-9 Jun Lowgar Province Afghan exile After military ? attacks, Soviets used unknown chemicals on bodies killed in action 11 June Qandahar Mujahedin Aircraft bombs Poisonous gas 15 Province Jun Northern Faryab Pakistani Press Helicopters, Red, white, black ? Province bombs gases Jun Road between MI-24 Pilot Helicopter ? ? ? Kabul and (Soviet defector) Termez Jul Panisher Valley Afghan defector Aircraft Tabun nerve gas ? 20 Jul Syed Karom ? "Chemical gas" 3 20 Sep Lowgar Afghan observer Chemicals Gas pumped from armored vehicle early Oct "Chemical gas" ''Chemical gas" 73 pumped from armored vehicle 16 Nov Dewaghal, in Konar Valley Chemical bombs ? ? ? dropped on rebel stronghold 3 Feb 1983 Kandar Province Afghan military officer S~ COLLECTION AND ANALYSIS OF SAMPLES OF CHEMICAL WARFARE AGENTS AND TOXINS I. Identification of the specific chemical agents being used in conflict areas (such as Laos, Kampuchea, and Afghanistan) depends on collection and analysis of at least one of the following: environmental samples contaminated with agent, the munitions used to de- liver agents, or biological specimens from attack realistic prospect for yielding positive results. When- ever random samples are collected, even under ideal conditions, there is a wide variability in the concentra- tion of agents detected in the samples. This is not surprising when one considers the many factors that can affect sampling. victims 2. Obtaining contaminated samples that will yield positive traces of specific chemical agents is dependent on a number of factors. These include the persistency of the chemical; the ambient temperature, rainfall, and wind conditions; the media on which the chemical was deposited; and the time, care, and packaging of the sample from collection to analysis in a laboratory. Many standard chemical warfare agents are nonper- sistent and disappear from the environment within a few minutes to several hours after being dispersed. These include, for example, the nerve agents sarin and tabun, the blood agents hydrogen cyanide and cyano- gen chloride, the choking agents phosgene and diphos- gene, and the blistering agent (urticant) phosgene oxime. Other standard CW agents-such as the nerve agents VX and thickened soman, and the blistering agents sulfur mustard, nitrogen mustard, and lewis- ite-may persist for several days to weeks depending on weather conditions. The trichothecene toxins are persistent but may be diluted to below detectable concentrations by adverse weather conditions. Al- though the trichothecenes are quite stable under con- trolled laboratory conditions, in the field they may be subject to microbial degradation 3. To maximize the chances of identification and detection, sample collections should be made as rapid- ly as possible after a chemical assault, and with many agents this means minutes to hours. Under the circum- stances of Southeast Asia and Afghanistan this has simply not been possible; nor has there been hardware specifically developed and disseminated to these areas to aid collection of perishable samples. While numer- ous samples have been collected, few of them held any 4. Samples have been collected from Southeast Asia since mid-1979 and from Afghanistan since May 1980. To date, about 350 individual samples-of greatly varying types and usefulness for analytical purposes- have been collected and analyzed for the presence of traditional CW agents, none of which have been detected. On the basis of recommendations by medical and toxicological experts and of findings by the US Army Chemical Systems Laboratory (USACSL), many of the samples have been analyzed for the trichothe- cene group of mycotoxins. Details concerning the samples, including the circumstances of their collec- tion and results of their analysis, are provided in tables D-1, D-2, and D-3.0 5. All environmental and nonbiological samples are submitted to USACSL for comprehensive analysis for unknowns, to include traditionally recognized chemi- cal warfare agents and other possibly toxic materials. Tissue specimens and body fluids from victims of CW attacks are submitted to the Armed Forces Medical Intelligence Center (AFMIC). Before 1982, AFMIC was known as the US Army Medical Intelligence and Information Agency (USAMIIA).' Analyses of biologi- cal samples for trichothecene and other myc oxins are conducted under the sponsorship of AFMICI The US Food and Drug Administra- tion has also assisted in analysis, as has a pollen expert from the Smithsonian Instituted ' Unless otherwise indicated, all human tissue and urine speci- mens listed in the sample set tables were refrigerated (5-8 degrees C) from the time of collection until they were received by the p-1 SE Afghanistan: Sample Collection and Analysis for Presence of Chemical Warfare Agents Sample No. Sample Description History of Sample 1 Rocket and bomb fragments Fragments were obtained in Konarha with Soviet markings Province, sent to USACSL on 18 April 1980. 2 Soviet gas mask and canister Purchased in Kabul. Sent to USACSL on 18 September 1980. 3 Knit polyester cap, a polyester Obtained in Islamabad, Pakistan, from knit jacket, badly worn shirt, an Afghan refugee, who claimed he which appeared to be recently was subjected to a gas attack, Collected washed. on 2 November 1980, shipped from field on 19 November 1980, received by USACSL on 8 December 1980. 5 7.62-mm cartridges The cartridges, which reputedly were coated with a poison, were carried by special Afghan police and some Soviet advisers. Samples were collected in No- vember 1980 and received for analysis at USACSL on 4 February 1981. 6 Cotton garment and socks Clothing appeared to be very dirty. Clothing obtained from Afghan refu- gee in Islamabad, Pakistan. Refugee reportedly subjected to CW attack. Re- ceived by USACSL 12 February 1981. Transferred to USAMIIA for toxin analysis. 7 Soviet Shlem gas masks Five masks were procured in Kabul at various times and were sent as received to USACSL for analysis between 24 August 1981 and 21 December 1981. No background information is available with these masks. 8 Expended Soviet 5.45-mm car- Obtained by Mujahedin about 1980. tridge case The bullets had been captured from the Soviets and used by Afghan Islamic insurgents. During a firefight, insur- gents using the bullets became ill, with severe vomiting and nausea for several hours. They suspected that the Soviets had contaminated the powder charge. Sent to USACSL on 25 August 1981. 9 Soviet gas mask with canister Item was reportedly taken from a Sovi- et after a Soviet gas attack in early 1981. Item was collected by an Afghan, who is associated with the Mujahedin and who loaned the item to US person- nel for analysis. USACSL received the mask on 18 December 1981. Analytical Results No evidence of standard CW agents. No evidence of standard CW agents. Dioctylphthalate, which probably was used to test gas mask filter, was identified. Analysis showed no evidence of any known CW agent but detected a high molecular weight ester, which could be indicative of a trichothecene, and adipic acid esters. Also detected malathion, an organic phosphate insecticide. Not analyzed because of deterioration of sample enroute. No evidence of standard CW agents was found on bullet coating or scrapings from slug. Not analyzed for toxins. No evidence of known CW agents. Re- sults on trichothecene pending comple- tion of analysis. No evidence of traditional CW agents. An analytical sample from the external surface of one-quarter of a mask, ob- tained in September 1982, showed the presence of toxin T-2 (approximately I microgram). The result was verified by two independent laboratories. No evidence of any generally recognized agent or toxic compound was found. Was not analyzed for toxins. Preliminary analysis by thin-layer chro- matography (TLC) of material from hose connection of the mask indicated the presence of T-2. This could not be con- firmed, No evidence of traditional CW agents. Table D-3 (continued) Afghanistan: Sample Collection and Analysis for Presence of Chemical Warfare Agents Sample No. Sample Description 10 Grain History of Sample Sample was collected. by who reported that it may have been poisoned. USACSL received sam- ple on 24 February 1982. Portion of sample to be analyzed for toxins. Alleged CW sample taken from the site of a 19 February 1982 CW attack on Provided the sample to e US briefing team during its visits to Pakistan (1-5 April 1982). One-half the sample retained by the UK. Remaining sample given to USACSL for analysis. (2) Cartridges reputedly poisoned The samples were received by rom a Mujahedin leader, The cartridges reported- ly caused discoloration of the face (pur- ple and green), choking sensation, and death within 15 minutes, This occurs even when similar injuries from ordi- nary cartridges were not lethal. The material was captured during an attack on a Soviet convoy between Ghazni and Zabol Provinces on its way to Qandahar. Sent to USACSL on 31 March 1982 for analysis. Sample received on 7 July 1982 and submitted to USACSL on 8 July for exploitation. btained sample from a relative, who got it from contacts in Nimruz Province. USACSL received August 1982. Insurgent from Panjsher brought pow- der to Kabul. Powder reportedly was used by Soviets in the Panisher Valley to contaminate food and water; also dropped from aircraft. USACSL re- ceived on 15 July 1982. Analytical Results Preliminary analysis by TLC indicated the presence of trichothecene toxins. Three alternate methods of analysis were used but none were confirmatory. No evidence of traditional CW agents. High-purity tetryl (trinitrophenyl meth- ylnitramine). Tetryl is a high-velocity initiator used to detonate TNT. It burns at 295?C when unconfined and explodes at 180-190?C when confined. No evi- dence of traditional CW agents. (1) Wheat sample: Vapor analysis showed traces of unidentified compounds (molec- ular weights 413 and 460) less than 0.26 ppm As, and hydrocarbon carbonyl. No evidence of traditional CW agents. TLC supportive of T-2 toxin or diacetoxyscir penol. Not confirmed by additional analysis. (2) Cartridges: X-ray identified bullets as tracer type. Analysis showed no evidence of known CW agents or suspect toxins. Vapor sample: biphenyl, dimethylauino- line. Unidentified mass 141. No standard CW agents present. No trichothecenes were present. Analysis complete. Primarily carbon. Vapor sample con- tained biphenyl, dimethylquinoline, and possible cyclic polysulfides. Also found Inorganic salts, possibly Perchlorates. Probably residue from munitions. No evidence of CW agents or poisons. TLC was negative for trichothecenes. 1. T ' document was disseminated by the Directorate of Intelligence. T s copy is for the informatio nd use of the recipient and of persons under his or her juri action on a need-to- know basis. ditional essential dissemination may be authorized the following officials within their respe ive departments: a. Director, Bu u of Intelligence and Research, for a Department of State b. Director, Defen Intelligence Agency, for the ffice of the Secretary of Defense and the organiz 'on of the Joint Chiefs Staff c. Assistant Chief of Sta for Intelligence, r the Department of the Army d. Director of Naval Intellig ce, for th epartment of the Navy e. Assistant Chief of Staff, Inte . en , for the Department of the Air Force f. Director of Intelligence, for He quarters, Marine Corps g. Deputy Assistant Secretary or In national Intelligence Analysis, for the Depart- ment of Energy h. Assistant Director, F , for the Federal B eau of Investigation i. Director of NSA, r the National Security ency j. Special Assists to the Secretary for Nationa ecurity, for the Department of the Treasury k. The Dep y Director for Intelligence for any other De rtment or Agency 2. This d ment may be retained, or destroyed in accordance ith applicable security regulatio , or returned to the Directorate of Intelligence. 3. hen this document is disseminated. overseas, the overseas recipients retain it for a p iod not in excess of one year. At the end of this period, the document shoul a destroyed or returned to the forwarding agency, or permission should be requested of the warding agency to retain it in accordance with IAC-D-69/2, 22 June 1953.