Let me give you a little timeline of my possible career interests:
Numbers 1 - 4 were when I was young and naive about the world. Numbers 5 - 6 are post-college education. I could ramble on and on about the stupidity of the CIA, but I won't. Instead, you should read "Legacy of Ashes : The History of the CIA" by Tim Weiner; that will give you greater insight into what I mean.