I'd also like to see it hit. Most of the Earth is still pretty much empty, so even if it hits the Earth, it will probably end up somewhere where a 2 Megaton burst is relatively unimportant. We can predict where it will hit a long time in advance, so nobody need get hurt. It would be good science, and a media event. For many countries with lots of land it could even be a good foreign exchange earner. And it will encourage governments to stump up the necessary money to map the other asteroids.

Pity it will almost certainly miss. 0.022% isn't much.