As Facebook has grown, so have its challenges

In 2011, as Facebook inched ever closer to a billion active monthly users, it faced a vexing crisis: uproar about a facial recognition algorithm that tagged people in photos without their consent.

Six years later, and as Facebook nears 2 billion users, that complaint almost seems quaint.

http://www.startribune.com/as-facebook-has-grown-so-have-its-challenges/422150253/