I have a recurring concern. I wear programmable hearing aids and carry a little remote control that looks a bit like a pager. When I go through security, it goes in the "empty your pockets" basket. Typically, the minimum-wage type picks it up, turns it over, looks at it, and hands it to me. Occasionally, he/she will ask me what it is. I say "remote control for my hearling aids." He/she says "Oh," and hands it to me. Very infrequently, I'll be asked to turn it on. When I do, two little red lights flash. That's it. Again, "Oh," and return it to me. That thing could just as easily be the remote control for the bomb in my checked luggage. It's sort of scary.