The first explosion occurred shortly before dawn last week at an abortion clinic in Wheaton, Md. Eleven minutes later, a second bomb blast shook a Planned Parenthood office one mile away, in Rockville. No one was hurt, but the eleven-year-old abortion clinic was destroyed, and the Planned Parenthood office sustained an estimated $50,000 in damages.
The attacks were the latest in a nationwide series of violent protests against abortion clinics and family-planning centers. According to Planned Parenthood, fires or explosions have damaged 20 such facilities so far this year, up from four in 1983. Although one group, the "Army of God,"...