[quote="Nicholas"][quote="werewolfgrrly"]Lolol, the video was really cool. Stinks something like that cant be awesome without hurting people

[/quote]
Actually, ''hurting'' people is not even close what those damn rocks are
really capable off. Our most powerfull nuclear warhead would be merely a fart compared to a 1km asteroid or comet.[/quote]
Which we already spotted and know with 99.99999999% certainty that any of those will not get us for the next 1000000+ years. (I know that there are a few "maybes" far closer than that, but as our models increase in accuracy, we are discovering that the chance of them hitting us is decreasing). A wonderful thing, gravitation, is.
The only way we might have to be afraid of large asteroids is if we decide to go out, get one, and bring it back in one piece.