Priests attend the mass for the beatification of Pope John Paul II in Saint Peter's Square at the Vatican May 1, 2011. [Photo/Agencies]

Bishops wait before the mass for the beatification of Pope John Paul II in St. Peter's square at the Vatican May 1, 2011. Pope John Paul II moves a step closer to sainthood on Sunday when his successor beatifies him before an expected crowd of several hundred thousand people. [Photo/Agencies]