Pope Benedict XVI through the years

22 of 38: Britain's Queen Elizabeth II, centre, exchanges gifts with Pope Benedict XVI, right, with Britian's Prince Philip at left, during an audience in the Morning Drawing Room at the Palace of Holyroodhouse in Edinburgh, Scotland, Thursday Sept. 16, 2010. Pope Benedict XVI, beginning a controversial state visit to Britain, acknowledged Thursday that the Catholic Church failed to act decisively or quickly enough to deal with priests who rape and molest children. (AP Photo / David Cheskin, pool)

REPLAY SLIDESHOW