[Kevin Sevcik]

Ditto Chris on plasma not being the answer. Just looking at the properties of light sabers, there's no chance any laser, plasma, etc. solution is going to work. They can effortlessly cut through people and metallic objects. Anything laser/plasma based is going to burn through things, which necessarily takes some time. And would produce a lot of smoke and byproducts. Burning through a metal without leaving a pile of slag is even harder. So yeah, give up on plasma as a solution to this. If you're going to toss out a random futury word as a solution, atleast keep up with the times and say it'll probably be something quantum.