After completing their medical-history forms, patients at the Hope Clinic for Women in Granite City, Ill., are asked an unusual question: Would they be willing to write a letter thanking the nine U.S. Supreme Court Justices for the right to have an abortion? Few refuse. Says Lori, 30, a businesswoman who terminated her pregnancy there earlier this month: "It really makes me mad that they are trying to outlaw it."
For months, proabortion advocates have been desperately trying to harness the anger of women like Lori. The reason: they fear that the high court, with its newly conservative majority, may tamper...