Dimock resident Victoria Switzer holds a map of the Dimock area as she addresses fellow protestors front of the Academy of Natural Sciences in Philadelphia before an appearance by Environmental Protection Agency (EPA) Administrator Lisa Jackson Friday Jan. 13, 2012. Residents of the small northeastern Pennsylvania town of Dimock, at the center of the political fight over natural gas drilling, joined environmental activists from elsewhere to rally Friday outside a conference on urban environmental issues. About a dozen residents of Dimock have sued Cabot Oil & Gas Corp., claiming the energy company caused contamination of wells when it extracted natural gas using a process known as hydraulic fracturing, or fracking. (AP Photo/Jacqueline Larma)