U.S. Senator Boxer, chairman of the Senate Committee on Environment and Public Works, speaks during the nomination hearing for McCarthy to be administrator of the EPA, in Washington

 
U.S. Senator Boxer, chairman of the Senate Committee on Environment and Public Works, speaks during the nomination hearing for McCarthy to be administrator of the EPA, in Washington
U.S. Senator Barbara Boxer (D-CA), chairman of the Senate Committee on Environment and Public Works, speaks during the nomination hearing for Gina McCarthy to be administrator of the Environmental Protection Agency (EPA), on Capitol Hill in Washington April 11, 2013. REUTERS/Joshua Roberts