Build Your Own Bluetooth Sniper Rifle
Jim Buzbee writes "I don't think I'd do it, but these guys built a Bluetooth Sniper rifle, went to the roof of a downtown Los Angles skyscraper and pointed it at nearby buildings. See what they found, and if you're so inclined, they'll show how to build your own and maybe, just maybe, you too can snag Paris Hilton's address book." (Which was not snagged via Bluetooth snooping, as the article points out.) This version looks a bit more polished than the one mentioned last August.
If they had made this look like a telescope rather than a weapon, and mounted it on a tripod, they could have pointed it just about anywhere they wanted and nobody would have paid a whole lot of attention to them. The rifle-like appearance only served to make the device look much more dangerous than it was.
There are times when the form factor of a rifle makes perfect sense (rifle stocks for cameras, for example), but many others where it just DOESN'T. This is one of the latter group.
Mal-2
How is the Riemann zeta function like Trump rallies? Both have an endless number of trivial zeros.