Maybe they're figuring that this wireless-thing has more legs than the whole building-weapons-thing, but a British
defence contractor has created this wallpaper that can actually block WiFi signals and confine them to certain
buildings and rooms so you don't have to worry about other people trying to free ride or hackers trying to break into
your wireless network. The wallpaper uses special Frequency Selective Surface panels similar to the materials
used in the stealth bomber, and comes in both active and passive varieties, so you can switch off the WiFi blocking at
whim. No word on when it'll come out commercially, but it'll probably have Pentagon-style pricing.