Pacific Gas and Electric President Chris Johns, left, and Vice President of Energy Delivery Geisha Williams, right, address questions during a press conference in response to a gas pipeline explosion ... more 
Pacific Gas and Electric President Chris Johns, left, and Vice President of Energy Delivery Geisha Williams, right, address questions during a press conference in response to a gas pipeline explosion in San Bruno, Calif., Monday, Sept. 13, 2010. less 
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Associated Press | Photo By Marcio Jose Sanchez
Sat, Sep 18, 2010 3:23 AM EDT