Last week, Rabbi Eric Yoffie called J Street "morally deficient, profoundly out of touch with Jewish sentiment and also appallingly naïve" for criticizing the bombardment of Gaza. See Yglesias for J Street’s response and for an eloquent exposition of how noxious it is for Yoffie to police the boundaries of Jewish discourse.

The only thing I’d add is a thought experiment. If a prominent Muslim cleric made a point of telling his co-religionists that they would be out of line with the mainstream of their faith community if they criticized an act of political violence too stridently, would American Jews 

a) celebrate such a statement as a forthright statement of moral clarity; or

b) smugly congratulate themselves on their relative abundance of intellectual freedom?