Hang Conservative Godfather, William F. Buckley, for Treason?

William F. Buckley, whom many consider to be the founder of the modern American conservative movement, recently wrote that the American adventure in Iraq is a failure. He's called for troops to be withdrawn from the country. Glenn Greenwald discusses the reasons for and against hanging Buckley for treason. ...

According to Greenwald:

This is a real question: by the standards which have become commonplace among Bush followers, isn’t Bill Buckley clearly a traitor? We are (of course) in the middle of a war. That war (in Iraq) is the central front in another war we're fighting (the War on Terror, a/k/a the War of Civilizations, World War III, World War IV, the Long War). To surrender in Iraq is -- to use the White House's formulation -- to "surrender to the terrorists." Bill Buckley is clearly on the other side - the side of terrorists. And what a coward he is.