Retweets are not endorsements, goes the formula. But is a tweet linking to an existing article a republication of the article, legally speaking?
A federal appeals court said last week that the answer may be yes, and on that basis revived a libel lawsuit filed by U.S. Representative Devin Nunes against the journalist Ryan Lizza. The consequences are significant, opening the door to a raft of lawsuits against people who post links on social media platforms or anywhere else.