'I didn't sign up for this!'

(JNS) — It has been nearly a week since two unarmed, innocent Israel supporters were gunned down in Washington, D.C., without cause or provocation. I have been waiting in the intervening days for some sign of remorse or regret from the pro-Palestinian camp here in America. Not simply the compulsory condemnation of unprovoked violence (though that itself may not be a given in these confounding times), but a full-throated reappraisal and disavowal of a movement that has proven itself to be very different from what it claimed to be.

From the dyed-in-the-wool Islamists, the inveterate anarchists a...