I Want One
~ Researchers in Japan have created a speech muzzling gun. When pointed at a speaker it replays what is said 0.2 seconds later. The slightly delayed echo interferes with the speaker's ability to make anything but unintelligible sounds. They are rendered speechless!
Dear Japanese industrialists: Please, please put this into production immediately. We are in the throes of another rebarbative election marathon and the need is desperate. You could probably sell millions of them.
Researchers' paper here [PDF].