Snowden has been very sparing about discussing his early life or his personal life.

I've been very blessed in my personal life and in my career and I have never been ungrateful for what I have.

I've always been really private about my personal life. I don't talk about it.

For personal use, I recommend the free and open-source Truecrypt, which comes in flavors for Windows, Mac and Linux.

Friend of mine, a smart journalist, had his iPad stolen. He couldn't help that - the thief broke into his house. But his private, personal data wasn't stolen, exactly. Donated, more like. He had no passcode set on the iPad.

The U.S. government has known since the early 1990s about Soviet-era smallpox weapons, and collected circumstantial evidence of programs elsewhere.