Sounds to me (just to be safe) would be to pack a couple of different types of Magnifiers. Bruton's catalog has at least one small Compass with a built-in one. And there are others that are combi devices with integrated LED Flashlight, Whistle, etc. Another is a highly flexible Pocket Lens from www.campmor.com that would pass anywhere and is virtually unbreakable.

Someone on my thread suggested a P-38, but I don't believe that is foolproof as it has a rather sharp point.

The best Fire Starter option would be to somehow replace the metal prong on your belt buckle with a Flint Rod! I'd wager to bet that No X-Ray machine would even suspect that. Unless it can scan for this particular type of metal one could get thru any airport in the U.S. Maybe the Israeli's would stop you. LOL