PATRICK BUCHANAN, COMMENTATOR AND former presidential candidate, looked over the issues on the political agenda in 2006 and liked what he saw. It was a paleoconservative's delight. There was the Dubai ports deal, rejected by a congressional uprising part nationalistic, part isolationist. There's immigration, soon to be debated on the Senate floor and always high on the paleocon list of concerns. Excessive government spending, a worry of all conservatives but especially paleocons, is a major topic this year. And the intervention in Iraq and President Bush's crusade for democracy face sharp criticism, with paleocons in the lead among the critics....