Profits

Can one of you nice connected people out there help the ol' Small town Hick with the answer to a question?
Haliburton has been in charge of supplying the Army in Iraq since the beginning, as well as running the reconstruction. Last I heard, ther had been overcharging for gasoline (something that seems to have dropped off the radar), and the troops were still having to provide their own body armor and hummer plates.
A Haliburton subsidiary has been in charge of the Katrina cleanup, and recently the news has been that KBR has been bringing in illegals and underpaying them for the work. I haven't been hearing any cheering from the bleachers about KBR keeping the price of the cleanup down, so I assume they've been billing the government for proper salaries, even if they haven't been paying them.
So, my question - does anybody have any idea, even an estimate, of how much money Haliburton has been paid by the government since the election of George W. Bush?
And how much of that is profit?