Blackhawk,All of that seems such a long way from the old black powder days, but when you think about it, it's only been about 120 years away. 120 years in technology years is kind of like 1,000 years though. It would be cool if we could see into the future and see what kinds of hand held weapons would be possible even 100 years from now.
Right now lasers over a certain power level are controlled like class III weapons. While you can get and use them it is for machine cutting tools. I doubt we will ever have "guns" that leave no trace of the gun in or near the person shot. I doubt that the military will trust the field soldier with such a device.
Who knows, in 100 years we may be back to using bows and spears...