A friend of mine travels internationally constantly for work. During one trip to Cambodia, he went to a range to shoot machine guns, and he slipped a few 7.62 nato rounds into his pocket at some point. They ended up in his travel bag, where they were forgotten about and remained for several months. The bag was brought as a carry-on on more than a dozen international flights with the bullets clanging around inside, and eventually the bullet detached from the casing on several of the rounds, causing gun powder to spill all over the pocket. It was not stopped once.<p>I found the bullets when he told me to grab some goggles out of his bag, and my hand came out of a pocket blackened with explosive powder. That was during a trip about 2 years ago.