04/29/2009
https://www.congress.gov...
"There would be nothing like focusing the mind than survival with one of these things heading toward us."
"I just, again, want to point out that there is a 30 percent chance that there is a 5-megaton or so impact that is going to happen in a random location on this planet this century."
"I think we need to get far more of the information... to the American public."
"Does the fact, as we prepare to go to Mars and the stated goal of rendezvousing and landing and returning with a human crew from an asteroid, does that in any way help us perfect our ability to avoid ..."