ARLINGTON, VA – SEPTEMBER 11: 11: A woman cries during a remembrance ceremony during a ceremony in observance of the terrorist attacks of 9/11 at the Pentagon September 11, 2013 in Arlington, Virginia. Family members of the Pentagon attack victims and survivors of the attack gathered to hear from Obama and other leaders at the National 9/11 Pentagon Memorial near the place where terrorists drove a jetliner into the Department of Defense headquarters in 2001. (Photo by Kevin Dietsch-Pool/Getty Images)