Laughing

Exelon Corp.Constellation Energy GroupMayo A. Shattuck III
Exelon Corp. President Christopher M. Crane, left, and Constellation CEO Mayo A. Shattuck, right, chuckle during a brief moment of levity during questioning on Constellation Energy Group's proposed sale to Exelon during the first day of hearings before the Maryland Public Service Commission.... Baltimore Sun photo by Amy Davis
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