 So why did the Secret Service leave that rooftop open knowing that? I know I'm two days early for Conspiracy Theory Thursday, but it's tough to imagine a conspiracy, but even harder to imagine that level of incompetence being the explanation for the rooftop being unguarded. I'm waiting to see some political cartoons, like a sign in the parking lot with an arrow says, this way to a clear line of fire, no guard on duty. Or maybe a cartoon of a guy carrying a ladder under one arm,