“I hope you’ve all been doing the hanky panky,” Sheldon Adelson said to us, over the microphone. The superannuated gambling-industry billionaire, financier of right-wing vanity candidates and causes, was onstage in an enormous auditorium somewhere outside Tel Aviv: a stout little figure, well groomed but vaguely unhealthy-looking, telling us all, through wet lips, that we ought to be fucking.