I guess the first thing to do would be to work out the objects composition. And then come up with a solution from there. If the object was mostly ice, heat it up and turn it to liquid, breaking it up into smaller parts. If it is mostly iron or rock, possibly do the Bruce Willis thing and drill into it and set it with charges. I think trying to push it off course is ultimately the wrong thing to do, as it would possibly still have to be dealt with later on. I reckon break it up into as small as you could, and let the atmosphere do the rest. Im sure we'll get plenty of warning about any NEOs that will impact earth and Im sure the world powers will team up briefly to sort the problem out quickly. Never know, might be just what we need to truly start the road to peace.
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