How about drug testing politicans each time they pick up a paycheck, CEOs before they get government contracts or corp. welfare? Musicans and actors before they sell their products to our children? After the wall street collapse, we should test brokers and bankers.
Why not mandate drug testing for everbody who will get grants and loans for college? Or You and your girlfriend must be tested before you get a marriage license? How far do you want to take this? It's all fine and dandy when you subject one group of people, but how would alot of us fair if it came to our back yard?