The Chronology Protection Agency
I have no idea why--adn this is my own fault for surfing off of Lorentzian wormhole theory--but this is just the coolest thing ever. I now have images of tiny little spacetime squid-blobs in little suits with clipboards lecturing offenders on how not to break spacetime by time traveling--"No, no, bad scientist, you are in time out, no more particle physics for *you*."
You know, at least a majority of my inability to comprehend physics is the fact it's really freaking *hard* to get a visual on some of this.
I'm kind of punchy from trying to comprehend closed timelike curves. I can't even give a reason for reading this, to be honest. It was a wikipedia random surfing thing.
Can't get to half the sites I like at work, so play around on the one I can. :)