In every thriller written about Washington, particularly after 9/11, there are good guys and there are bad guys, and there's no gray area at all.
It is one thing for the human mind to extract from the phenomena of nature the laws which it has itself put into them; it may be a far harder thing to extract laws over which it has no control.
It's the first film that I made where the director was not present under the camera, and it threw me.