Spit, something our bodies readily produce for free, can be very valuable. It can mean the difference between prison and freedom, and between being related to Wild Bill Hickok versus Buffalo Bill. In an effort to cater to dedicated genealogists, Ancestry.com is introducing a new service that promises to provide detailed information about consumers ancestors as well as connections to other living relatives, for the price of some saliva and $99.
Some people wouldn’t have a problem with you shooting photos and video of the people you pass as you stroll down the street sporting your Google Glass headgear. But if you could use a facial recognition app on that same device to glean personal information about complete strangers, it’s probably not going to be as warmly received. [More]