Electromagnetic weapons, electronic pulses, and satellite-grabbing space weapons are only a few of the high-tech toys that governments actually play with.
Sci-fi movies have long been the inspriation for weapon manufacturers throughout the world. Some are still in the works, but many are in use today.
It's not scary to know these weapons are real. What's scary to think about are the ones that are out there that we don't know about.
I think the coolest of these weapons is the guided bullet. Perhaps the neatest (and maybe scariest) are the Russian and Chinese satellite grabbers.