GOP Senator Rick Santorum -- who's trailing Dem Bob Casey by double digits in polls -- has launched a remarkable attack on Casey: He's now accusing the Dem of "aiding and abetting terrorism and genocide." Today's Pittsburgh Post-Gazette reports that Santorum is making this charge by rather creatively pointing out that Casey, who's state treasurer, hasn't ensured that pension funds were not invested in firms that do business with nations "linked" to terrorism, such as Iran and Syria. Of course, there's a small problem with this attack: As a Casey spokesman is noting, Santorum's own campaign has taken money from some of the very same companies which Casey allegedly failed to prevent pension fund investments in. Among them: Royal Dutch/Shell and Deutche Bank. More here.