Invade Mexico?

Like it or Not: Mexico is America’s Next Afghanistan | RedState: "With the exception of, perhaps, Texas governor Rick Perry, no public official wants to publicly admit an obvious fact: The United States of America will likely be forced to invade Mexico. It’s not a matter of if, it’s a matter of when.  The question then becomes: What to do with Mexico after we invade it and wipe out the drug cartels (as much as can be). Does the United States merely return Mexico to a nation state of corrupt politicians, failed economic policies, and lawlessness, or do we annex Mexico and turn it into the 51st state?"