SIDNEY CALLAHAN AND DANIEL CALLAHAN This book, like many other things to do with abortion, is a product of long controversy. Though carried out with cooperation, it was conceived in conflict. The conflict between the coeditors has per- sisted for years-in fact, for at least half of their thirty-year marriage. One, Sidney, is prolife; the other, Daniel, is prochoice. Ever since the topic of abortion became of professional interest to us, in the 1960s,...