Umm.. why was there a timer on the Nuke?
If you were to remote detonate a bomb, why put a 6 minute timer on it? what is the asteroid was 5 minutes from earth? Surely the decision to remote detonate the nuke would mean they'd want it detonated immediately.
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Hobbit review - the good, bad and ugly
http://www.youtube.com/watch?v=rU37BBSH_TY