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

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

Ordinary Geiger counters, worn on belt clips and resembling pagers, have been in use by the U.S. Customs Service for years.

I don't say I never use Facebook, but I often think about closing my account.

The NSA's business is 'information dominance,' the use of other people's secrets to shape events.

The IronClad is faster than most thumb drives but far slower than a standard hard drive. Boot up, application launch and other Windows operations feel sluggish, though still usable.