President George W. Bush was visiting a Florida classroom on Sept. 11, 2001, when he first received word from a presidential aide that America was under attack.
He boarded Air Force One and flew to bases in Louisiana and Nebraska before landing at the White House at dusk. Security officials had been concerned about the White House being a target of further attacks.
Bush addressed the nation, saying "Our country is strong."
And three days later, Bush walked amid the ruins at ground zero in New York. On a bullhorn, he told emergency workers that the terrorists who launched the 9/11 attacks would live to regret it.
The former president is expected to return to the former World Trade Center site on the 10th anniversary of the attacks. New York City Mayor Michael Bloomberg says Bush will be among the dignitaries at a ceremony that President Barack Obama and former New York City Mayor Rudy Giuliani also are expected to attend.