Seems to me, considering we already know that this is a potential danger, we would've already come up with
something to prepare us for an "unspotted" asteroid.
That is a bit scary. Reminds me of that movie that was out (Asteroid?).
Why is it, with all of the technology that we have, all of the crazy movie scenerios that we come up with, we never seem to be prepared enough in a real crisis (ex: 9/11, esp. the Pentagon attack)?