The Volokh Conspiracy
Mostly law professors | Sometimes contrarian | Often libertarian | Always independent
The Washington Post (Justin Wm. Moyer and Michael E. Miller, Morning Mix) reports, "Video shows U. of Missouri protesters and professor barring media coverage." (Of course, asking people to stop photographing is itself protected speech; a crowd's deliberately physically pushing photographers out of the way is not.)
The professor, whom the New York Times (Austin Huguelet & Daniel Victor) identifies as Melissa Click, is shown on the video (06:23) as calling for "Hey, who wants to help me get this reporter out of here! I need some muscle over here!" Prof. Click is a professor in the University of Missouri Communication Department. Check out the Moyer and Miller post for more.
For those who want the explicit connection between photography of publicly visible things in public places and free speech, see, e.g., ACLU v. Alvarez (7th Cir. 2012).
I e-mailed Prof. Click last night for her side of the story but haven't heard back from her; if I do, I'll update the post accordingly.