Jack Dorsey's Exit From Twitter Could Worsen Tech Censorship

Jack Dorsey has resigned as CEO of Twitter, having served in various leadership roles at the company since its inception in 2007.

"I've decided to leave Twitter because I believe the company is ready to move on from its founders," he explained in a statement.

While Facebook has attracted significantly more attention in recent months, due to widespread concerns—some of them overblown—that the site spreads hate and misinformation and is making teenagers depressed, Twitter is the preferred site of the media and political classes. The virtual blue bird's nest may have...