Charlie Wilson's Movie

My wife and I saw the movie this past weekend. It was entertaining, thought I don't care for Julia in the roll of Jo Ann, and while Tom captured Charlie, he didn't look like him. All the key one-liners were in there, but some of the important implications of the decisions that were made were glossed over. I enjoyed it, but it left me feelling a bit sad about the US and how it manipulates the worold (so poorly). Isn't some of this stuff supposed to be secret?