During Katrina I heard stats that parts of New Orleans were more dangerous than being on the front lines in Iraq. Don't know if that is true though.
Unfortunately, I don't have them at hand.
It's obviously a different kind of danger in a war.......including the fact that you volunteer for it, and that you're fighting for freedom and security...... but in terms of deaths, it's more dangerous in parts of the U.S........and I would guess both NO and DC, as well as LA and probably Chicago and NYC, would be among them.