Just jam them: http://www.extremetech.com/computing/120583-new-speech-jamming-gun-hints-at-dystopian-big-brother-future http://www.extremetech.com/computing/120

Just jam them: http://www.extremetech.com/computing/120583-new-speech-jamming-gun-hints-at-dystopian-big-brother-future http://www.extremetech.com/computing/120583-new-speech-jammi...