Dave Davies brings us through the ins and outs of congressional redistricting in Pennsylvania. Susan Phillips reports for the first time, the EPA has linked groundwater pollution with fracking. Taunya English talks to the experts about the most recent data on breast cancer risk factors. Elizabeth Fiedler talks to supporters of Mumia Abu-Jamal about a rally of his international supporters to be held in Philadelphia this weekend. Maiken Scott brings us the second part of our AIDS series, focusing on prevention efforts through the years. And Carolyn Beeler rides along with an insulation company whose marketting technique may be controversial.