Washington Mass

Pope Benedict XVI arrives for his Papal Mass, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

Pope Benedict XVI arrives to celebrate Mass, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

Pope Benedict XVI greets faithful upon his arrival at Washington Nationals Park in Washington, Thursday, April 17, 2008, to celebrate an open-air Mass.

Pope Benedict XVI consecrates the host during a Mass, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

Pope Benedict XVI conducts a Papal Mass, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

Felicity Robertson, 4, of Damascus, Md., sleeps as she is held by her mother Mary Robertson, Thursday, April 17, 2008, as Pope Benedict XVI celebrates Mass at Washington Nationals Park in Washington.

Washington Nationals Park in Washington is filled during a Papal Mass by Pope Benedict XVI, Thursday, April 17, 2008.

Pope Benedict XVI walks down the center aisle after celebrating an open-air Mass with 46,000 worshippers at Washington Nationals Park in Washington, Thursday, April 17, 2008.

Pope Benedict XVI arrives for his Papal Mass in the Popemobile, Thursday, April 17, 2008, at Washington National baseball Park in Washington.

The Popemobile, with Pope Benedict XVI aboard, makes his entrance for a Mass, Thursday, April 17, 2008, at Washington Nationals baseball Park in Washington.

Cardinals watch the large screen as Pope Benedict XVI arrives for his Papal Mass, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

A procession of Catholic clergy walk on the field of Washington Nationals Park in Washington, Thursday, April 17, 2008, to attend the Mass by Pope Benedict XVI.

Members of the Catholic clergy wait as the last minute preparations are made for the Mass of Pope Benedict XVI, Thursday, April 17, 2008, at Washington Nationals Park in Washington.

Father John Scada of Hanover, Pa., reads through his program in the early morning, prior to the Papal Mass with Pope Benedict XVI, Thursday, April 17, 2008, at Nationals Park in Washington.

A group of Nuns make their way to their seats for the Mass of Pope Benedict XVI, Thursday, April 17, 2008, at Nationals baseball Park in Washington.

Lila Herndon, 5, tries to make her sister Hannah Herndon, 3, smile as a choir practices on stage in the background in the early morning, prior to the Papal Mass with Pope Benedict XVI, Thursday, April 17, 2008, at Nationals Park in Washington.

Little Sisters of the Poor Sister Rose Marie, Sister Imelda and Sister Florine are among the first to arrive in early morning before the Papal Mass with Pope Benedict XVI in Nationals Park in Washington, Thursday, April 17, 2008.