Former CNN anchor Don Lemon was arrested Friday in Los Angeles by federal agents on charges that he violated federal law during a protest last week at a church in Minnesota. Lemon, an independent journalist who hosts his own YouTube show, was taken into federal custody in Beverly Hills while covering the upcoming Grammy Awards on Sunday, according to federal officials. Three others, including another journalist, have also been arrested. In court, Lemon pleaded not guilty — at one point he chuckl