Mealey's (December 1, 2015, 9:59 AM EST) -- RICHMOND, Va. — The Fourth Circuit U.S. Court of Appeals on Nov. 25 granted the U.S. Environmental Protection Agency Administrator Gina McCarthy’s petition for a writ of mandamus seeking to block her deposition in a suit brought by energy companies accusing her of failing to perform her nondiscretionary duty to evaluate how the agency’s implementation of the Clean Air Act (CAA) is affecting the coal industry (In re: Gina McCarthy, No. 15-2390, 4th Cir.)....