HowStuffWorks "10 Most Incriminating Secret Recordings" You may realize that you may be secretly recorded at any time. Learn about 10 recordings that incriminated the people connected to them.
Spying on Hitler's Army: Secret Recordings - Channel 4 Spying on Hitler's Army: Secret Recordings. The story of an audacious British operation to eavesdrop on the private conversations of 10,000 German prisoners ...