Book excerpt: Broken Bridge is about a baby, a drug dealer, and all the forces that swept them both toward a tragedy. More than half a million babies are born each year in the U.S. who were exposed to drugs or alcohol before they were born. This book tells the story of one of them, and what happens when the drug dealer who sold drugs to her mother has a change of heart. From a hospital in a large city to the emptiest reaches of the California desert , Broken Bridges traces the connections among the agencies that could have made a diff erence--but didnt--and the people who came into Baby Isabels life as a result.