Email Record: The border : are environmental laws and regulations impeding security and harming the environment? : joint hearing before the Subcommittee on National Security, Homeland Defense, and Foreign Operations of the Committee on Oversight and Government Reform and the Subcommittee on National Parks, Forests, and Publice [sic] Lands of the Committee on Natural Resources, House of Representatives, One Hundred Twelfth Congress, first session, April 15, 2011.