Man arrested after Twitter threats are made against U.S. senators

Date published: June 29, 2016"“The accused in this case could (and may well) raise . . . First Amendment challenges” to the Twitter ban, Scott Shackelford, a professor of cybersecurity law at Indiana University said in an email. But, he added, “the threatening nature of the Tweets in question” could be used to justify the ban."
The Washington Post