"Americans don’t know how to improvise. This is why their armies, the most technologically sophisticated armies in the entire Local Group, are helpless against some barefoot guerrillas. If Americans stopped thinking about how to change the rules of football, and actually tried to understand the game, they might actually begin to understand guerrilla warfare, and save their lives."
If you read his whole comment I think most people would agree that he was being a tad harsh (especially on the post's author Sean) - unless, say, his father was killed by an American misinterpreting the back pass rule (not quite sure how that could happen, but I'm just saying).
This morning I learnt from Prof. David Hughes that the more we learn about comets the less we actually know! He was in Glasgow giving a seminar to the astronomy group and very interesting it was to - he's a very good public speaker, so if you get the chance go to one of his talks. He did also show us some nice pictures of comets, although I didn't spot any alien spacecraft hiding behind any of them.