General Discussion
In reply to the discussion: More crackpot thinking from Glenn Greenwald [View all]Fumesucker
(45,851 posts)The best minds of the Third Reich assumed it was impossible for the German Enigma code to be broken.
Churchill actually read many of Hitler's top secret messages before Hitler did.
Making negative assumptions based on presumed technical incapacity to do something is not a very smart thing to do.
For example, the assumption of 1 MB per minute for a voice conversation is off by a factor of at least two just for MP3 encoding, there are better and more efficient codecs than MP3 available to the public these days, I"m sure the NSA can do better than what is available commercially.
http://www.audiomountain.com/tech/audio-file-size.html
At 48 kbps an MP3 file uses about 360 KB per minute, that's fine for voice recording although sounds crappy for music.