There has been something missing in Bethlehem, the birthplace of Christianity: Christians.

For years, Palestinian Christians have been quietly abandoning the place where Jesus is said to have been born in a manger. Middle-class residents here have packed their bags for less chaotic lives in Latin America, Europe and the United States.

Tourism ground to a halt more than a decade ago, during the second Palestinian intifada, or uprising, and is now experiencing a comeback.