Great point Alfa, it's like Mangano couldn't kill Albert, and yet Albert could kill MAngano but he had to be kinda sneaky about it, lest not upset PRofaci and BOnnano, also Bonnanno, in his arrogance, seems to have believed Albert was deferential to him, why I think they swallowed it, plus like Alfa pointed out because Costello backed it, hitting Albert would have been an attack on Costello, and basically a declaration of war against LUciano by default...