The uses for tesla coils and other devices of that ilk continue to expand. This snippet talks about an Indiana company's idea for a "less than lethal" weapon type device that uses high voltage for crowd control. From a recent edition of digitaljournal.com:
Military Weapons on the Horizon
If Thor were to land in 21st-century Earth, he would be jonesing to own a lightning gun dubbed StunStrike from Xtreme Alternative Defense Systems (finally, a company worthy of the name “Xtreme”). This 11-foot-high weapon shoots four-foot bolts of lightning by using an electrical charge to create a path for sparks generated by a Tesla coil. Call it the next-gen stun gun or Loki’s worst nightmare.
The company that makes this (or plans to make this, I can't tell from the company website whether this really exists or not) is called XADS. Their other product line consists of something referred to as "photonic disrupters." I think I'd like to have a photonic disrupter. Not sure what I'd do with it, but it sounds really cool. If memory serves, I think I first heard that term in the 1960s as a Star Trek weapon carried by either Romulans or Klingons.