Why save these things? Written e-messages can be altered so don’t save them. Phone calls from people not under a home-grown terrorist watchlist or criminal scrutiny should not be collected. It’s an invasion of privacy.
Home-grown terrorists own and operate Verizon, the Cloud, Facebook, Linked-in, Microsoft, Google, YouTube, Mail.com, G-Mail, Inbox.com, and a myriad of other internet data gathering operations. Yahoo, AOL and Twitter got their start that way but I think they may have broken their ties with the bad guys.
Please don’t allow the gathering of information, period, it’s just rude.