The American family is changing. Divorce, single parents, and stepfamilies are redefi ning the ways we live together and raise our children. Many "experts" feel these seemingly inevitable changes should be celebrated; they claim that the "new" families, which often lack a strong father, are actually healthier than traditional two-parent families-or, at the very least, do children no harm. But as David Popenoe shows in Families Without Fathers this...