Tonight on Extension 720: Can you really predict catastrophes? What are the odds of a tornado? Is there are chance that an asteroid could hit the earth? Is it probable that we will have another nuclear disaster? RICHARD POSNER, judge of the Seventh Circuit U.S. Court of Appeals, says that you can predict catastrophes and thus formulate a proper response. He expounds his theory in his new book Catastrophe: Risk and Response, and he joins the program tonight to discuss the possibility of the unthinkable and the best way to respond.

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