people say crocodiles normally attack things lower to the ground like dogs and children. that's the best thing you can say about crocodiles. >> that is a very scary point. i want to talk about another story you have been working on. nasa says there are 13,000 pieces of man-made space garbage. the stuff could fall back to earth at any moment. this is pretty alarming that we polluted space. what do you think? >> do you know how big space is? it is pretty big. we are far from the sun. it is a ball of fusion. we would burn. >> that is true. how did this happen and why can't anyone stop this? >> well, space ships go bad, greg. that's why nasa doesn't have an eye -- the typical human nature is to worry about a problem after it started.
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