Increased threat from meteors?

NEW YORK, NY - JULY 29: Astrophysicist Neil deGrasse Tyson answers science questions from the crowd at the Williamsburg Waterfront on July 29, 2011 in New York City. (Photo by Mike Lawrie/Getty Images)
NEW YORK, NY - JULY 29: Astrophysicist Neil deGrasse Tyson answers science questions from the crowd at the Williamsburg Waterfront on July 29, 2011 in New York City. (Photo by Mike Lawrie/Getty Images)

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    Increased threat from meteors?

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Astrophysicist Neil deGrasse Tyson weighs in on the threat of meteors.