Shouting down a speech

From the Blaze.

The efforts of pro-Palestinian “Occupy” protesters to stifle the free speech of pro-Israel speakers nationwide continued at the University of New Mexico on Thursday night when a small group tried to shout down a speech by author Nonie Darwish. This time, their pre-planned disruption led to a physical altercation.
Continue reading: http://www.theblaze.com/stories/occupy-activists-mic-check-prompts-physical-altercation-at-pro-israel-college-event/

Whatever happened to free speech?