Backed by abortion rights groups, three Massachusetts women sued Wal-Mart on Wednesday, accusing the retail giant of violating a state regulation by failing to stock emergency contraception pills in its pharmacies. The lawsuit, filed in state court, seeks to force the company to carry the morning-after pill in its 44 Wal-Marts and four Sam Club stores in Massachusetts. The plaintiffs argued that state policy requires pharmacies to provide all "commonly prescribed medicines." Wal-Mart carries the morning-after pill in Illinois only, where it is required under state law, said Dan Fogleman, a spokesman for Bentonville, Ark.-based Wal-Mart. Fogleman said the company...