Former US President George W Bush will speak at this week's dedication of the Flight 93 National Memorial.
The National Park Service and National Park Foundation announced that Mr Bush, who was in office when the plane crashed on September 11, 2001, will join Vice President Joe Biden and Flight 93 family members.
Also attending the event will be dignitaries including former first lady Laura Bush, Secretary of the Interior Ken Salazar, National Park Service Director Jon Jarvis and Pennsylvania Governor Tom Corbett.
Football fans attack police
More than 70 football fans and riot police were hurt in clashes that spread outside the stadium in Cairo, said officials in Egypt.
A statement by the country's state news agency said that 50 of the injured were police.
The riots followed friction between the fans and riot police during the game between Cairo's leading team, al-Ahly, and Kirna Aswan. Fans objected to what they saw as police roughness towards them.
1,000 homes burnt in Texas
One of the most devastating wildfire outbreaks in Texas history left more than 1,000 homes in ruins and stretched the state's firefighting ranks to the limit.
Governor Rick Perry has been confronted with a major disaster at home just as the Republican presidential contest heats up.
More than 180 fires have erupted in the past week across the rain-starved Lone Star State, and nearly 600 of the homes destroyed since then were lost in one catastrophic blaze near Austin that raged for a third day.
Mr Perry cut short a presidential campaign trip to South Carolina to deal with the crisis.