Women alone can bear children, and women have borne much of the burden of NOT getting pregnant.
There's a wide array of contraceptive methods for women, a much narrower range for men. But there IS getting close to market.
It's already being tested on humans, with success in blocking sperm production. Researchers at the University of Washington developed the pill and the studies of its effectiveness. UW's Stephanie Page and Arthi Thirumalai visit with details.
