The article: New speech-jamming gun hints at dystopian Big Brother future (Extreme Tech)
Here's the perfect accessory for dystopian police agencies determined to silence the masses: a speech-jamming gun! Turn it on, and everything goes silent within 30 meters. Problem is, the "bad guys" (i.e. anti-authoritarians) could get their hands on these things, especially once they get small enough, and use them to silence the windbag officials. Every cyberpunk worth his handle wants one, and you know it.