Last week PJ Media D.C. editor Bridget Johnson was suspended from Twitter with no warning or explanation. It's been nearly a week now and thus far Twitter has yet to offer a reason for the suspension. According to Twitter's Help Center, there are two types of suspension — a temporary timeout that results in reinstatement in a matter of hours, and a second, much more serious "permanent" suspension. Bridget's appears to be the latter. The company did not flag a particular tweet that was problematic and her request for an appeal has gone unanswered. While many Twitter users engage in...