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)
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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