FROM CNN's Jack Cafferty: The 2012 presidential campaign will soon go into high gear; but before it does, here's an idea worth considering: [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/01/24/art.palin.jpg caption=""] What if you had to pass a competency test in order to run for president? You know, prove to the voters that you have some sort of a clue. … Continue reading Competency test for presidential candidates?