U.S. National Security Advisor Condoleezza Rice greets famil

UNITED STATES - APRIL 08: U.S. National Security Advisor Condoleezza Rice greets family members of victims of the 9/11 terrorist attacks after testifying before the National Commission on Terrorist Attacks in Washington, DC, April 8, 2004. Rice said the Bush administration gave top priority to thwarting al-Qaeda before the Sept. 11, 2001, attacks yet lacked a ``silver bullet'' to prevent the strikes. (Photo by Chris Kleponis/Bloomberg via Getty Images)