The Pill for guys? Don't hold your breath

Male contraception is like the nuclear fusion of safer sex—perpetually about 10 years away from commercialization. Sure, there's condoms and vasectomies. But if you want something a little less intrusive or a little less permanent, you're out of luck. Scientific American examines the possibilities that exist in the research pipeline, and why no male contraceptive has yet shown up in your local pharmacy.