These guys don't even wait for the cover of darkness:

As fiscal hawks surrendered, would-be government contractors were meeting in the Hart Senate Office Building to figure out how to get a share of the money. A "Katrina Reconstruction Summit," hosted by Sen. Mel Martinez (R-Fla.) and sponsored by Halliburton, among others, brought some 200 lobbyists, corporate representatives and government staffers to a room overlooking the Capitol for a five-hour conference that included time for a "networking break" and advice on "opportunities for private sector involvement."