At a dinner with friends last night, I told them that I had hope that Abbas would actively seek to arrest those involved in last night's suicide bombing in Tel Aviv. I am hopeful that what has happened is real and not just a round-up of "the usual suspects".

Seven held after Tel Aviv bombing

TEL AVIV, Israel (CNN) -- Israeli and Palestinian security forces have arrested seven people after a 22-year-old university student detonated a suicide bomb outside a nightclub in a popular beachfront area of Tel Aviv, killing four and injuring at least 65.