Photos: 9/11 remembrances
151575115MW001_PENTAGON_HOL
Credit: Getty Images
ARLINGTON, VA - SEPTEMBER 11: A family member of a victim of the 9/11 visits the Pentagon Memorial before a remembrance ceremony September 11, 2012 in Arlington, Virginia. U.S. President Barack Obama is scheduled to joined staff and family members at the Pentagon to commemorate the eleventh anniversary of the September 11 attacks. (Photo by Mark Wilson/Getty Images)
Other Slideshows
Photos: Cars dumped into water when bridge collapses
New photos from ground zero of Moore tornado
Frank Davis in the fight of his life
Photos: Forbes' list of most powerful women 
Photos: Crowds rock out on beach at Hangout Fest
Oklahoma tornado leaves dozens dead, including many children
