Hamas may operate without corruption, but they don't take kindly to any opposition as witnessed against Fatah with it's coup. While those statements Emmas wrote in the last post seem accurate, the fact is Israel is not willing to budge as long as militants in Gaza fire rockets- and they hold Hamas responsible for not using their power to stop them. If they can crack down on Fatah, obviously they are capable of doing the same with the others.- So leadership in Israel says if Hamas doesn't do anything, then they will, and so the violence goes on and and agreements get done.