President George W. Bush and his advisers walk to the South Lawn of the White House in Washington on Sept. 18, 2001 to observe a moment of silence in remembrance of the victims of the terrorist attacks. Bush joined his staff at 8:45am, to mark the time when the attacks began exactly one week before. From left are: White House Chief of Staff Andrew Card, FBI Director Robert Mueller, Attorney General John Ashcroft, National Security Adviser Condoleezza Rice, Vice President Dick Cheney, and Bush. (AP Photo/Doug Mills)