Is it possible to learn the real reason behind the Bush Admin. agenda for wanting to stay in Iraq?

I know that the Project for a New American Century is available to read, and they have an official website. However, by the Freedom of Information Act could the American people have access to the actual reason that the Bush Administration put the Kurds in power in Iraq and not the real Iraqi people, or if the Administration was actually behind starting the civil strife in Iraq? Or are there certain limitations to the Freedom of Information Act?