After the FBI rescheduled another postponed briefing on the Boston Marathon Massacre for 8 p.m. on Wednesday night -- and then canceled that one, too -- that was it. I was going to give the news circus a rest until morning. Came the dawn I heard that terrorism expert Steven Emerson had dropped a bombshell Wednesday night on Sean Hannity's Fox News program. Emerson reported that Abdulrahman Ali Alharbi, the Saudi national first identified as a "person of interest" and then downgraded, like a tropical storm, to "witness," would be deported from the United States "on national security grounds." This,...