We may very well face a future where algorithms bust people en masse for referencing illegal "Game of Thrones" downloads, or run sweeps for insurance companies seeking non-smokers confessing to lapsing back into the habit. Instead of that one guy getting busted for a lame joke misinterpreted as a real threat, the new software has the potential to roll, Terminator-style, targeting every social media user with a shameful confession or questionable sense of humor.

◼ Careful what you tweet: Police, schools tap social media to track behavior - NBC

...As social networks continues to look for ways to make money, the potential for providing direct access to the information we share publicly online is unsettling. Consider Facebook, and its infinite database of publicly shared photos on the Internet. In August, the social network announced that it might add profile photos to its facial recognition database, to aid in photo tagging.

"Can I say that we will never use facial recognition technology for any other purposes? Absolutely not," Facebook Chief Privacy Officer Erin Egan said in a statement.

Of course, like all social media, you can opt out. At least for now.