No need to worry Sticks, I'm sure Superman will save us.....
On a more serious note, people will now be (I don't mean on this forum, I mean some people in the world) terrified and waiting for this to happen - do we really need to know about this asteroid NOW, years before it hits??
I go by the "What will be will be" principle, although I'm sure that the Scientists will find a way to stop it hitting - havent you seen Armageddon and Deep Impact folks?
Actually, bad examples, lots of people die in them, don't they............
At least by the time we die (if it does hit) we'll have lived through another 7 or so Big Brothers, gradually getting worse with each series, as the producers try to find 'new' ideas..........They could use it as a task - you know, stop the asteroid using three cardboard boxes and a battery......