Several nerdy friends of mine who feel naked without their pocket knife have independently discovered that this handy mini-knife disguised as a key will both work in a pinch and — shhhhhh! –pass through airport security checks unnoticed. Here is a way to travel with a knife at the ready. Just hand them your keys when you go through the machine!
I’ve had one, and when I bring my keys I have no trouble getting through security on international and domestic flights. I was surprised to find the other little gizmos incorporated into this miniature thing — particularly the Philips screwdriver — are just as useful.