Can Zuckerberg really make a privacy-friendly Facebook?

While Facebook has already tried to show ads in the Messenger app, it’s seen only limited success, and hasn’t even tested the concept in WhatsApp since it acquired that service for $22 billion in 2014.“There are some huge unknowns about how successful Facebook is going to be rolling advertising into a more private messaging environment,” said eMarketer analyst Debra Aho Williamson.Some critics are convinced that Facebook has become so powerful — even a threat to democracy as well as to people’s privacy — that it needs to be reined in by tougher regulations or even a corporate breakup.But unraveling Facebook could become more difficult if Zuckerberg can successfully stitch together the messaging services behind an encrypted wall.“I see that as the goal of this entire thing,” said Blake Reid, a University of Colorado law professor who specializes in technology and policy. On Wednesday, Zuckerberg said that Facebook needs to protect both privacy and safety as it encrypted messaging services, although he noted to an “inherent trade-off” between security and safety, simply because Facebook won’t be able to read encrypted conversations.And in some cases, Facebook could allow some content to automatically disappear in a day or two, as if it were a fleeting mirage.“Some people want to store their messages forever and some people think having large collections of photos or messages is a liability as much as it is an asset,” Zuckerberg told the AP.