The bottom line is that the CIA knew before the war, during and war, and after the war where most of these chemicals were and most of these biological agents. ↗
The War on Drugs employs millions - politicians, bureaucrats, policemen, and now the military - that probably couldn't find a place for their dubious talents in a free market, unless they were to sell pencils from a tin cup on street corners. ↗
As a child, I read science fiction, but from the very beginnings of my reading for pleasure, I read a lot of non-fictional history, particularly historical biography. ↗