Just heard on CNN (paraphrased):

President Bush and Air Force One will touch down shortly at Andrews AFB, as usual. From there, he will board his Marine One helicopter, and fly directly to the British Embassy in Washington DC, where he will sign the condolence book expressing sympathy for those killed and wounded in yesterday's attack.

Uh...President Bush was in LondonBritain at the time of the attacks. He expressed sympathy in person, both to the public and to Prime Minister Tony Blair.

Does he think that it doesn't count unless he does it at home?