In the past we would work with the NSA to help keep American/western data safe. Now, they’re the bad guys.
What makes this legal is that it takes place overseas, away from US laws and jurisdiction (or so they think).
The solution to PRISM is to put strong cryptography into everyone’s hands.
NSA gathering data from Microsoft, Yahoo, Google, Facebook, PalTalk, AOL, Skype, YouTube and Apple.