BOSTON -- Sen. John Kerry's sister assured a rally of feminist Democrats here yesterday that her brother will name several pro-choice justices to the Supreme Court if elected president. "There are three things my brother is going to do when he's elected president," Peggy Kerry told a Boston event held yesterday at the Harvard Club by the National Organization for Women (NOW) and the Feminist Majority. Mr. Kerry will restore $34 billion to the United Nation's population fund for family planning, she pledged, and the Democrat will make sure that "CEDAW," an international treaty to eliminate discrimination against women, is...