White House Welcome

President Bush applauds as Pope Benedict XVI greets the crowd, Wednesday, April 16, 2008, during an arrival ceremony on the South Lawn of the White House in Washington.

Pope Benedict XVI waves to the crowd as President Bush applauds, Wednesday, April 16, 2008, during a South Lawn arrival ceremony at the White House in Washington.

President Bush escorts Pope Benedict XVI to the podium during a South Lawn arrival ceremony at the White House in Washington, Wednesday, April 16, 2008.

President Bush and Pope Benedict XVI listen to the National Anthem, Wednesday, April 16, 2008, during a South Lawn arrival ceremony at the White House in Washington.

President Bush and Pope Benedict XVI stand during an arrival ceremony, Wednesday, April 16, 2008, on the South Lawn of the White House in Washington.

President Bush and Pope Benedict XVI stand for the playing of the National Anthem, Wednesday, April 16, 2008, during an arrival ceremony on the South Lawn of the White House in Washington.

President Bush and Pope Benedict XVI stand on the South Lawn of the White House in Washington, Wednesday, April 16, 2008, during an arrival ceremony for the Pope.

Pope Benedict XVI watches the trooping of the colors, Wednesday, April 16, 2008, during an arrival ceremony on the South Lawn of the White House in Washington.

President Bush and first lady Laura Bush flank Pope Benedict XVI as he waves to the crowd from the balcony of the White House in Washington, Wednesday, April 16, 2008, during an arrival ceremony.

Spectators wave Papal and U.S. flags as they watch President Bush and Pope Benedict XVI take part in an arrival ceremony, Wednesday, April 16, 2008, on the South Lawn of the White House in Washington. The White House estimates that 13,500 spectators attended the ceremony.

President Bush and Pope Benedict XVI walk to the Oval Office of the White House in Washington, Wednesday, April 16, 2008, following an arrival ceremony on the South Lawn.

President Bush meets with Pope Benedict XVI, Wednesday, April 16, 2008, in the Oval Office at the White House in Washington, Wednesday, April 16, 2008.

Pope Benedict XVI blows out a candle on a cake to celebrate his 81st birthday during his visit to the White House in Washington, Wednesday, April 16, 2008. At right are Archbishop Pietro Sambi, Apostolic Nuncio to the United States and President Bush.

Pope Benedict XVI, riding in the Popemobile, waves while passing the White House in Washington, Wednesday, April 16, 2008, following an arrival ceremony on the South Lawn.

People on the street cheer as Pope Benedict XVI, riding in the Popemobile, passes by on Pennsylvania Avenue in Washington, Wednesday, April 16, 2008, following an arrival ceremony and meeting with President Bush at the White House.

Pope Benedict XVI is cheered as his motorcade passes along Massachusetts Avenue in Washington, Wednesday, April 16, 2008.