After experiencing the line of questioning about drug use in the clearance screening for working at the White House personally and the historical zero tolerance policy towards even minimal drug usage, I am guessing there were some pretty messed up situations in the 1950s and 1960s that resulted in that screening process. I don’t think what we are seeing right now is new, it is just really out in the open, where earlier ones were probably covered up like what the CIA was doing.