There's been plenty of commentary concerning the latest NSA leak concerning its FISA court-approved "rules" for when it can keep data, and when it needs to delete it. As many of you pointed out in the comments to that piece -- and many others are now exploring -- the rules seem to clearly say that if your data is encrypted, the NSA can keep it. Specifically, the minimization procedures say that the NSA has to destroy the communication it receives once it's determined as domestic unless they can demonstrate a few facts about it.
NSA Scandal: If Your Data Are Encrypted, They are Being Collected
If you secure any data you send over the internet encrypting them, you probably have a backup copy somewhere at the NSA. From Tech Dirt: