Pacific Gas and Electric Company President Christopher Johns closes his notebook after testifying before a Senate Commerce Committee hearing on Capitol Hill in Washington, Tuesday, Sept. 28, 2010, on ... more 
Pacific Gas and Electric Company President Christopher Johns closes his notebook after testifying before a Senate Commerce Committee hearing on Capitol Hill in Washington, Tuesday, Sept. 28, 2010, on the San Bruno, Calif., gas pipeline explosion. less 
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Associated Press | Photo By Susan Walsh
Tue, Sep 28, 2010 11:26 PM EDT