Works in Progress: Male Contraceptive Pill

Men are sometimes called the forgotten half of contraception. While women's options were greatly expanded in the past century, men still have the same choices their great-granddaddies had: condoms or vasectomies. Some reasons for the discrepancy may be social, based on assumptions about which sex is more likely to accept the responsibility for pregnancy. But efforts to devise a male counterpart to the birth-control pill face biological hurdles as well.