Comparing John Murtha to Lee Harvey Oswald

In the latest attack on dissent from the right, Matthew Yglesias flags National Review's Mackubin Thomas Owens comparing Rep. John Murtha, a leading Democratic opponent of the war in Iraq, to JFK assassin Lee Harvey Oswald:

We Marines maintain that except for Lee Harvey Oswald, there is no such thing as an "ex-Marine." I believe that John Murtha has just joined that small club.