Hey, Pearl Harbor really WAS a surprise attack. Honest! I mean, come on; we're the NSA! Would we lie to you?????
Obviously, as the US prepares to trick us all into war in Pakistan, expect a flurry of articles from "authorities" reassuring us that every other war was based on the honest truth, that Pearl Harbor was a surprise, there really were torpedoes in the Gulf of Tonkin, Spanish mines in Havana Harbor, and that Saddam's nookular bombs are still out there somewhere.