Marcellus shale natural gas extraction

Radio Times WHYY, October 15, 2009: "Hour 1: The Marcellus Shale formation lies beneath much of Pennsylvania, and it's where energy companies expect to find a motherlode of natural gas. But the process and politics of removing it also extracts a cascade of questions. Joining us to help understand the issues are Abrahm Lustgarten, investigative reporter with ProPublica.org; extraction industry spokesman Lee Fuller of EnergyInDepth.org; and David Masur of the advocacy group PennEnvironment."