that won't last. How long till Facebook releases an iPhone app that lets you take a photo of a person on the street, then query that photo with facial recognit

that won't last. How long till Facebook releases an iPhone app that lets you take a photo of a person on the street, then query that photo with facial recognition software against the millions of photos on their servers. 5 years? 10 years? You don't even have to query a ton of people. 1. Query the immediate area around the person to see if the guy you took a pic of has the app installed on his phone. 2. Query all people in a 10 mile radius 3. Query all people in the state for a $5 fee. 4. Query all people in the country for a $50 fee