Like I said, there are good reasons on both sides of the question, and I think Krauthammer might be right on this one. I realize that he is Politically Incorrect for the moment, but he still has a very good eye for many issues, and I respect his views on this one. I know I rarely agree with everything that anyone says, Krauthammer included, and I wouldn’t discount his opinion on everything.
If things continue to escalate along the border, and if more American citizens are attacked and/or killed, and especially if there is an armed incursion into one of the border States, the US will have to respond with boots on the ground and air cover loaded for bear. Crossing the border to clean out the Cartels, and then handing the territory back to the Mexicans is not unthinkable, and what happens will depend heavily on what these Cartels do next, as well as what the Mexican Government does (or doesn’t do) next.
Premier Hussein is still the biggest problem though.
Also, if we are going to fight it like a war, there will be a lot of civilian casualties. These guys don't live on bases and barracks.