Sounds like a bad idea. Why should he risk his life over people who hate him?
He's the President. He needs to go somewhere down there that can symbolically resemble ground zero from 9/11. Not the Superdome or Convention Ctr obviously. But somewhere where the Pres, Mayor and the Governor can stand together amongst a ton of NG, police and medics, put aside blame game and show some real leadership. This is needed to motivate the workers and start injecting some positive media coverage. Bush needs to be on this 24x7 and focus on this like 9/11 over the next week and undo the PR damage.