In the United States, more than half the women who give birth are given drugs to induce or speed up labor; for nearly a third of mothers, childbirth is major surgery -- the cesarean section. For women who want an alternative, choice is often unavailable: Midwives are sometimes inaccessible; in eleven states they are illegal. In one of those states, even birthing centers are outlawed.When did birth become an emergency instead of an emergence? Since...