The Answer to Cheney's Dilemma

It's very simple. The documentary Why We Fight elucidated this for me.
The reason why Cheney was against invasion in 1994, when he was Secretary of Defense, and his change of heart today can be summarized in one word: Halliburton. He became president of Halliburton and then he became VP of the US. As someone points out in the film, this is our system of legal corruption. The country is run by a defense contractor. This is the answer.
Greed is just a simplistic explanation. It is the unstopabble machinery of American business that has created such havoc.
The film also explains the otherwise mindboggling refusal of Congress to oppose the war: it's called the military-industrial complex, to which every member of Congress is beholden because this industry provides jobs to their state.
So now you know. Do not expect anything yo change anytime soon. As long as we collude with these people, as long as no one demands accountability, nothing will change. It's just business.