A rain-soaked American flag flies at half-staff on Sept. 11, 2009, at the Pentagon Memorial to honor the 125 people who were killed in the 2001 terror attacks when the highjacked American Airlines flight 125 was flown into the headquarters of America's military, in Arlington, Va. , just outside Washington. President Barack Obama will lay a wreath at the Pentagon in a ceremony later this morning. AP Photo logo AP Photo 2 months ago

A rain-soaked American flag flies at half-staff on Sept. 11, 2009, at the Pentagon Memorial to honor the 125 people who were killed in the 2001 terror attacks when the highjacked American Airlines flight 125 was flown into the headquarters of America's military, in Arlington, Va. , just outside Washington. President Barack Obama will lay a wreath at the Pentagon in a ceremony later this morning.