Yellow rain was a 1981 political incident in which the United States Secretary of State Alexander Haig accused the Soviet Union of supplying T-2 mycotoxin to the communist states in Vietnam, Laos and Cambodia for use in counterinsurgency warfare. [1]

yellow rain, airborne substance that was alleged to have been used in biological attacks in Southeast Asia from the mid-1970s to the mid-1980s.

Apr 13, 2018 · After a lengthy investigation, U.S. analysts concluded in 1981 that the substance, dubbed “yellow rain,” was a chemical weapon made of fungus toxins and created by the Soviet Union.

Oct 1, 2005 · Reports in the 1970s of Yellow Rain, alleged chemical/toxin weapons attacks in Southeast Asia and Afghanistan, sparked the first large-scale investigation conducted by the United States into allegations of chemical and biological weapons (CBW) use.

Jan 28, 2013 · In “Yellow Rain,” Ember methodically examines the science behind the evidence and concludes that the U.S. “has badly botched the science needed to prove its case for toxin warfare.” The U.S. allegation of Soviet use of chemical warfare unfolded during the Cold War.

Sep 24, 2012 · Yellow Rain Producer Pat Walters brings us a detective story from the Cold War, about a mysterious substance that fell from the sky in Southeast Asia at the end of the Vietnam war. As retired CIA officer Merle Prebbenow explains, once the US pulled its troops out of the region, the Communists took over—the Viet Cong and their allies in Laos ...

In what became known as the "Yellow Rain" affair, these charges — that toxic substances called trichothecenes were used in CBW — were initially pressed vigorously by the U.S. government and, even when the allegations proved unsustainable, they were not withdrawn.

According to the U.S. government’s interpretation of refugee accounts, people caught in a shower of Yellow Rain experienced intense heat and burning on the skin, and began retching and vomiting in a matter of minutes.

Yellow Rain The allegations of toxin warfare, the so-called “yellow rain” in Laos and Cambodia during 1979-1983 and associated investigations and analyses, including field work in Thailand in 1983 showing that none of the evidence that had been cited as supportive of toxin warfare could be sustained and that the samples of the alleged agent ...

Sep 14, 1981 · Eyewitnesses in all three countries have reported seeing “yellow rain” fall from the skies. Shortly afterward, victims on the ground have suffered burning sensations, convulsions and massive ...