I can't believe I'm reading this

Welcome to the police state.

Here's how the law would work. Police, at their discretion, could order motorists during a traffic stop to undergo a drug test, most likely a urine test. If the driver's urine tests positive for prior pot use then he or she would automatically be charged and eventually found guilty of the criminal offense of driving under the influence of drugs -- even if the pot in question was consumed weeks earlier. Under the law, the fact that the driver is not impaired is irrelevant; the only "evidence" necessary is the positive test result.

What if this legislation, H.R. 3922, passes in both houses of Congress? Will we all have to submit to piss tests after getting pulled over for not wearing our seat belt?