thanks to Alan Stelzer for forwarding this story...
Agent Orange disaster
During their invasion war against Vietnam, the US Army conducted the largest-scale and longest-time chemical warfare in Vietnam, which has caused unprecedented consequences in human history.
In April 2012, an international scientific symposium was held in Yale University, the US, attracting a large number of world leading scientists. The participating scientists discussed the latest scientific research projects on chemical warfare and concluded: The US has conducted the largest, most cruel and inhumane chemical warfare in human history in South Vietnam.
During the 1961-1971 decade, the US Army sprayed some 80 million liters of toxic chemicals, including Pink, White, Green, Purple, Orange, among others. Among the toxic chemicals, Agent Orange (AO) accounted for 61%. This amount of AO containing 366kg of dioxin was sprayed onto one fourth of the area of South Vietnam, of which 86% was sprayed twice and 11% was sprayed 10 times or more.
“Agent Orange/dioxin” that is often used to label the toxic chemical sprayed in South Vietnam by the US Army contains 2,3,7,8 tetracholorodibenzodioxin (called dioxin in short) – the most poisonous chemical compound. According to the World Health Organization, some dozens of nanograms of the chemical compound can kill a person.
Dioxin is an unwanted by-product, which is born during production of other chemicals. If AO is produced properly at 88.80 degrees Celsius in 12 hours, the by-product of dioxin is insignificant.
But in order to get more profits, US Agent Orange manufactures shortened the production time to eight minutes and raised the production temperature to 277.70 degrees Celsius, which made the amount of dioxin in the AO product increase by hundreds of times.