I hope this isn't considered improper, but I wrote a few things on this topic and I think I go a bit more in depth than this Wired piece. Here they are: http:/

I hope this isn't considered improper, but I wrote a few things on this topic and I think I go a bit more in depth than this Wired piece. Here they are: http://michaelgr.com/2007/04/14/near-earth-objects-are-we-whistling-in-the-dark/ http://michaelgr.com/2007/04/14/near-earth-objects-are-we-wh... http://michaelgr.com/2007/10/28/deflecting-earth-bound-asteroids/ http://michaelgr.com/2007/10/28/deflecting-earth-bound-aster... http://michaelgr.com/2008/01/27/near-earth-objects-we-cant-beat-the-odds-forever/ http://michaelgr.com/2008/01/27/near-earth-objects-we-cant-b... http://michaelgr.com/2008/01/31/target-earth/ http://michaelgr.com/2008/01/31/target-earth/