Kantor on 28 July 2010
Anyway, I saw a documentary on asteroid deflection techniques. Considering that we already have the technology to deflect an asteroid (mini-nuclear explosions next to it), we are developing technology that can do it at a day's notice (laser beams), we're not very far from technology which will move it millions of kilometres away from Earth significantly before impact (solar power), I'm pretty sure that in 172 years, we'll be able to deflect this thing, even on the tiny off-chance that it is on a collision course with Earth.
(Former) Lead Moderator and (Eternal) VGC Detective 
