As I've noted, the 2012 Republican presidential primary will be vastly different from the 2008 race. Back then Ron paul was roundly derided for endorsing the traditional conservative approach toward foreign policy. This time around, a lot of the others are going to have to make a choice between conservatism and the liberal internationalism of the so-called "neo" conservatives. This piece on Haley Barbour from The Hill shows that the debate has begun: Mississippi Gov. Haley Barbour (R) may have set the tone for the foreign policy debate in the Republican presidential nominating contest when he questioned the war in...