Mmmm. Not really "Snowden's solution" per se:<p><a href="https://bitcointalk.org/index.php?topic=75775.0" rel="nofollow">https://bitcointalk.org/index.php?topic=75775.0</a>
Even if the communications were encrypted we should still be able to listen for the repeated patterns in their 'ascii' / 'unicode' codeset.