This morning it was announced that Monsignor Ronald Jameson, rector of the Cathedral of St. Matthew the Apostle, the Roman Catholic cathedral of Washington, DC, has commenced tweeting. Those who care to can follow him at https://twitter.com/@msgrjameson. Msgr. Jameson is not one of your young and trendy clerics just out of the seminary: he was ordained in 1968. He is quite good at sermon length: at 140 characters, well, that will be for Twitter readers to judge.