There are devices a high-level culture could produce that simply don't belong in the hands of incompetents of lower cultural evolution. The finest, and most civilized of tools can be made a menace ......

Liewen Konar smiled wryly as he put a battered object on the bench. "Well, here's another piece recovered. Not worth much, I'd say, but here it is." Obviously, it had once been a precisely fabricated piece of equipment. But its identity was almost lost. A hole was torn in the side of the metal box. Knobs were broken away from their shafts. The engraved legends were scored and worn to illegibility, and the meter was merely a black void in the panel. Whatever had been mounted at the top had been b