Before the 1980s, drug testing was uncommon. It was widely viewed as an invasion of privacy and an infringement on fourth amendment rights. Today, a medical student is likely to be drug tested before entering medical school, before clinical rotations, and/or before residency. If preventing drug use among medical students is the goal of these tests, they have failed miserably. Urinalysis drug tests are ineffective. But more importantly, they are immoral.