A silly political thriller. It's lead's motivations are never understood. None of the characters are fleshed out enough for us to understand or care about them, and the political message is simple minded and ludicrous.
Another great cameo by Tom Wilkinson is about the only thing worth seeing here, but it's hardly worth 2+ hours of your life.
If you want to see a brilliant send-up of the foibles of American/Brit political chicanery in the Iraq war era, see "In The Loop". It will be a far more rewarding use of your time.