COLUMBIA, Mo. – Jewish students in the University of California system labeled terrorists for their support of Israel. Black high school students pelted by bananas on a Tennessee campus tour. A hostile student in Maryland challenging his professor to a fight after the teacher limited the use of cell phones and laptops during lectures.

In a society where anonymous Internet commenters freely lob insults, and politicians spew partisan barbs, the decline of basic civility isn’t limited to academia. But the push for more polite discourse – often as an extension of more entrenched diversity efforts – is firmly taking root on campus.

From the University of Missouri to Penn State and Vanderbilt, colleges across the country are treating the erosion of common decency as a public health epidemic on par with measles outbreaks and sexually transmitted diseases.