A woman picks up a sign as she leaves the the Pennsylvania state Supreme Courtroom in Pittsburgh where the court was hearing arguments from seven municipalities challenging portions of a new law that regulates natural gas exploration on Wednesday, Oct. 17, 2012. (AP Photo/Keith Srakocic)

Associated Press
A woman picks up a sign as she leaves the the Pennsylvania state Supreme Courtroom in Pittsburgh where the court was hearing arguments from seven municipalities challenging portions of a new law that regulates natural gas exploration on  Wednesday, Oct. 17, 2012. (AP Photo/Keith Srakocic)
A woman picks up a sign as she leaves the the Pennsylvania state Supreme Courtroom in Pittsburgh where the court was hearing arguments from seven municipalities challenging portions of a new law that regulates natural gas exploration on Wednesday, Oct. 17, 2012. (AP Photo/Keith Srakocic)
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