Yep. That’s right. You can thank those “As Seen on TV” folks for the reason the Transportation Safety Administration is spending gajillions of your tax dollars (okay, $300 Million, but it’s still a butt-load of money). Sound nuts? Not so much. You see, any ceramic knife is completely undetectable by conventional magnetometers (the walk-through gadgets at most airports). Heretofore, ceramic knives were pretty rare. Not anymore. Thanks to an obscure company known as the IdeaVillage Products Corporation, $20 at any Walmart will get you a knife that you can effectively smuggle on just about any flight from any airport that doesn’t already use full body scanners to screen passengers. (But wait…you also get a plastic sheath – at least in the one that you get at Walmart.) I presume most terrorists will throw away the vegetable peeler (unless they have some kind of bizarre plan to skin the passengers, I suppose).