McCain, Obama to silence critical ads on Sept. 11 (AP)

Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks at a town hall meeting, Tuesday, Aug. 19, 2008, at North Carolina State Fairgrounds in Raleigh, N.C. (AP Photo/Jim R. Bounds)AP - Presidential contenders Barack Obama and John McCain plan to pull ads on Sept. 11 that criticize each other, a respite from the political fray to honor the anniversary of the 2001 terrorist attacks.