Movements' leadership fear for future of American Jewry in a country where anti-Semitism is politicized

Organizers say demonstrations held in some 70 US cities as prospects of major conflagration grow in wake of killing of top Iranian general

As PM's son sat in conversation with 'America's Rabbi' Shmuley Boteach, a few protesters broke a vow of silence given at the door. Both sides seemed to enjoy the ensuing fight