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The tension between security and free speech on college campuses

Colleges and universities often grapple with whether to invite controversial speakers on campus, usually allowing it given the First Amendment. How will this change the approach for such events?

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Martin Kaste is a correspondent on NPR's National Desk. He covers law enforcement and privacy. He has been focused on police and use of force since before the 2014 protests in Ferguson, and that coverage led to the creation of NPR's Criminal Justice Collaborative.