If you are concerned about people or governments covertly turning your cell phone 'on' and listening to you behind your back, this is for you!Smother your mobile in The Black Hole. No one will be able to eavesdrop or know you location. Your phone will become deaf, dumb and blind.
Or, you could just turn your phone off. Ok, pluck out the battery, too. Heck, go all out, a la Unibomber or Clifford Stoll (buy one of his Klein Steins, too). Shun technology altogether! (more)
