What would you do with one million rounds a minute? Really, really kill someone?
The caseless thing's nothing new. It's also nothing special, in my opinion. Keep in mind you have to CARRY all that ammo you're using up in less than a second, and that this thing'd be a real ***** to load. Never mind that the barrel'd wear down pretty quickly, and, once again, what'd you DO with such a high rate of fire?
And yeah. There's the chance for the odd electrocution. But given the relative simplicity of the wiring and the fact that most any cheap civvie-model gun could explode when jammed and kill or maim you, it's not that bad