Well, almost anything is possible; your argument is specious. Drug tests shouldn't rationally tell you anything more than marital status because any reasonably

Well, almost anything is possible; your argument is specious. Drug tests shouldn't rationally tell you anything more than marital status because any reasonably intelligent drug user can beat a simple piss test. If anything, a drug test is testing for stupidity more than drug use, it just so happens that those have a tendency to go hand-in-hand with respect to low-wage workers. But programmers? If Google drug tests people I'm sure they do so for liability reasons, not because they care what Johnny Genius does in his free time.