Christian Science Monitor: John Patrick Bedell, whom authorities identified as the gunman in the Pentagon shooting on Thursday, appears to have been a right-wing extremist with virulent antigovernment feelings. If so, that would make the Pentagon shooting the second violent extremist attack on a federal building within the past month. On Feb. 18, Joseph Stack flew a small aircraft into an IRS building in Austin, Texas. Mr. Stack left behind a disjointed screed in which, among other things, he expressed his hatred of the government.