NRDC's Doniger discusses future of EPA's existing source standard

Are the data pertaining to the technological feasibility of U.S. EPA's new source standard too limited to hold up in court? During today's OnPoint, David Doniger, policy director in the climate and clean air program at the Natural Resources Defense Council, discusses the legal challenges facing the agency for its new source proposal. Doniger also talk about his expectations for how EPA will handle states' needs in its anticipated existing source proposal.