I figured what the heck
Jackson Lears: Seymour Hersh, 27 September 2018
“... chemical and biological warfare (CBW), which had tripled its budget between 1961 and 1964 as the Kennedy and Johnson administrations began the systematic use of defoliants and herbicides in Vietnam. Hersh found a colonel who had recently retired from the US Army Chemical Corps with grave doubts about the morality of the work he had been doing. The colonel ... ”