FILE-In this March 19, 2009 file photo, nuclear expert Arnie Gunderson is seen at a nuclear hearing in Montpelier, Vt. Just as Japan did not plan for an earthquake as powerful and a tsunami as large ... more 
FILE-In this March 19, 2009 file photo, nuclear expert Arnie Gunderson is seen at a nuclear hearing in Montpelier, Vt. Just as Japan did not plan for an earthquake as powerful and a tsunami as large as what struck the Fukushima reactors, no one can plan for a future unknown disaster that might hit a U.S. nuclear plant, says Gundersen, a former nuclear industry engineer who has advised the Vermont Legislature on nuclear issues. less 
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Associated Press | Photo By File
Wed, Mar 16, 2011 2:30 PM EDT