FILE - In a Thursday, Aug. 14, 2003 file photo, the city of Cleveland sits in the dark except for emergency lights in the Federal Courthouse, left, and the SBC building, far right, after a massive ... more 
FILE - In a Thursday, Aug. 14, 2003 file photo, the city of Cleveland sits in the dark except for emergency lights in the Federal Courthouse, left, and the SBC building, far right, after a massive power outage struck the eastern United States and parts of Canada. Ten years after a blackout cascading from Ohio affected 50 million people, utilities and analysts say changes made in the aftermath make a similar outage unlikely today, though shifts in where and how power is generated raise new reliability concerns for the U.S. electric grid system. (AP Photo/Mark Duncan, File) less 
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Associated Press | Photo By Mark Duncan, File
Sat, Aug 10, 2013 12:23 PM EDT