It's time for an about-face on facial recognition

"Since faces are unique, “significantly altering a face to make it unrecognizable is difficult,” and names are distinctive, why do many people seem unconcerned about their public dissemination? The answer is simple. The norms governing our attitudes toward the name-face connection developed during time periods when it was hard to identify most strangers."

Where norms and technology abut - there you'll find privacy challenges.