On or off campus, she should sue. She was hired by the event organizers to take photos of the event and was labeled a racist for doing so.
The same with the "white people go around" event. All the white students should do a class action suit against the university, city, and police.
++++
I also think that everyone affected by the "Dear Colleague" letters bullshit should sue as well. The US Dept of Ed admitted that the letters, despite the claims in the letter, had no legal basis and their threats toward the universities would not and could not hold up in court. The letters were purposely worded to mislead.
The Obama administration illegally stripped young men of their constitutional rights.
This goes hand in hand with them dropping the charges of the 2 New Black Panthers who brandish weapons and making threats to whites at the 2008 polling place in Philly.