"Common Sense" in Politics

So, jaylake had some thoughts about the calls for "common sense" in American politics. It's short and worth a read, but here's an excerpt:

I don't want my airline pilot to use common sense. I have common sense, and I couldn't land a plane with a scorecard and a map. I want my pilot to use Special Pilot Knowledge, experience, and a strong understanding of her well-maintained aircraft to bring me safely back to ground. Which amounts to common sense for pilots, but has nothing to do with me, no matter that I've flown something like two million air miles in my life as a passenger.