Experts debate how to reduce AIDS in newborns.

(Some population experts predict apocalyptic scenarios. Others argue that human ingenuity can meet the challenge. Deciding who is right has as much to do with faith as with facts.

(Some population experts predict apocalyptic scenarios. Others argue that human ingenuity can meet the challenge. Deciding who is right has as much to do with faith as with facts.

From birth to death, a peasant woman's difficult life intersected the church.