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via The Atlantic: https://www.theatlantic.com/national/archive/2015/11/a-young-journalist-setting-an-example-for-the-rest-of-us/625865/
The point the photographer (Tim Tai) makes is that they’re all standing on public property, and just as they have a First Amendment right to protest, he has a First Amendment right to record what is going on. And, as he points out, to document it for history.
Link:
Melissa Click, an assistant professor of mass media, blocked Mr. Tai and yelled, “Who wants to help me get this reporter out of here? I need some muscle over here.”