Oh no more stupid redirect.
Ya really think a Asteroid strike is over rated ? Not sure how many people hold that belief. If I had to guess I would say your all alone on that one.
It's not just nuke'n the Asteroid, Its detecting it that is the real issue.
We need more then bombs, All that space around us is much harder to monitor then one would think, at first glance. I will try to find some info on the subject, I already know we are far from even being close to being able to do that, from my research in the past..
Of around 180 worldwide, Australia bears the scars of more than 30 major impact craters.
Evidence of huge asteroid impact in the outback
The asteroid would have caused a global catastrophe.
Further research may reveal it to be older and possibly closer to the Late Devonian extinction event 360 million years ago.
AND
On Friday, a 45m-wide asteroid – 2012 DA14 – passed just 34,000km from Earth, closer than the distance of the Moon.
Evidence of huge asteroid impact found in outback - Australian Geographic