With the caveat that it won't have the same settings as its Trek counterpart. Some country somewhere (other
than the U.S.) is going to stop caring about what the U.N. considers a war crime and start constructing man-portable Free Electron Lasers with variable frequencies. Infrared for cutting, visible/utraviolet for blinding, and then dial it up to x-rays and/or gamma rays for use against tanks or APCs. Larger version mounted on a naval vessel or an airplane would make for a poor man's nuclear deterrent, you could irradiate entire cities and then sit back for a couple of days and wait for everyone to die.