It was an ordinary looking weapon, but--there, in the year 2,050, it was...
In the year 2050 only one weapon remains on display in a museum as a reminder of the violent past. A man with criminal intent plots to steal it and use it to make himself dictator. He steals the gun and threatens to fire it in order to get his way, but his intended victim asks him to let him explain why he should not do so. The criminal refuses to listen and pulls the trigger, disintegrating himself. "Did he really not think we would leave such a weapon unguarded? It is indeed the world's most dangerous weapon, but only to the one who tries to use it."