In this Sept. 18, 2013, photo, EPA administrator Gina McCarthy testifies before 

In this Sept. 18, 2013, photo, EPA administrator Gina McCarthy testifies before the House Subcommittee on Energy and Power on Capitol Hill, in Washington. (AP Photo/Cliff Owen)
Associated Press
In this Sept. 18, 2013, photo, EPA administrator Gina McCarthy testifies before the House Subcommittee on Energy and Power on Capitol Hill, in Washington. (AP Photo/Cliff Owen)
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