The idea that we can be snuffed out by a very large rock slamming into our home should wake folks up. It doesn't, but it should. It would be really nice if we could convince people that legitimate scientific exploration might possibly hold a key to averting this sort of disaster. Unfortunately, it means that people would need to quit squabbling over religion. And we'd need to lock up all the apocalyptic freaks who would love to see this happen.