Climate: Attorney Robert Sussman discusses upcoming SCOTUS global warming case

As the Supreme Court prepares to hear oral arguments in Massachusetts v. U.S. EPA, the main issue it faces is federal authority to regulate heat-trapping greenhouse gases from new cars and trucks. During today's OnPoint, Robert Sussman, partner at Latham & Watkins and former deputy administrator of the EPA, discusses the case -- the court's first global warming case. Sussman discusses why he thinks the outcome of this case could allow for future administrations to take up the issue of regulation of carbon dioxide under the Clean Air Act.