Another option always on the table is to use the same Handwavium™ that runs the STUN suits, if you don't want to deal with the constraints of modern day technology.
Battery and energy storage is the main problem in tech besides, y'know, getting the concept to work. Scientists have figured out how to create gems from nuclear waste ( !!!!) which themselves emit energy. Can create wearable computers and other tech with it and its gonna be neat
Update on the Louvre Robbery: there are four more being arrested today, unfortunately there's no trace of the jewels being found since October 19th according to BBC News.
You know, there was a question from one of my fb pages I follow that asked, if time travel were possible what event would you visit in history and change. My response was that I'd stop or make sure Hitler were never born. And then I began thinking about it. And thought....how would that change ACME? Would we still be Anerican and international? Would we still have The united nations and NATO?