4 ms·

Invented by Mel Brooks in the 60's: http://hilobrow.com/wp-content/uploads/2010/07/cone-of-silence-1.jpg http://hilobrow.com/wp-content/uploads/2010/07/cone-of-

• joezydeco 13y ago
  Churchill might have scooped Brooks. Winston Churchill's secure telephone line from his Cabinet War Rooms to Washington DC was housed in a small closet. Rumors were that this was Churchill's private bathroom and everyone left it alone: http://en.wikipedia.org/wiki/SIGSALY http://en.wikipedia.org/wiki/SIGSALY http://www.flickr.com/photos/anthony-gurr/10782926364/ http://www.flickr.com/photos/anthony-gurr/10782926364/