Can Zuckerberg really make a privacy-friendly Facebook?

FILE - In this April 11, 2018, file photo, Facebook CEO Mark Zuckerberg pauses while testifying before a House Energy and Commerce hearing on Capitol Hill in Washington about the use of Facebook data to target American voters in the 2016 election and data privacy. Zuckerberg said Facebook will start to emphasize new privacy-shielding messaging services, a shift apparently intended to blunt both criticism of the company's data handling and potential antitrust action. (AP Photo/Andrew Harnik, File)

SAN FRANCISCO: After building a social network that turned into a surveillance system, Facebook CEO Mark Zuckerberg says he’s shifting his company’s focus to messaging services designed to serve as fortresses of privacy. 

Instead of just being the network that connects everyone, Facebook wants to encourage small numbers of individuals to carry on encrypted conversations that neither Facebook nor any other outsider can read. It also plans to let messages automatically disappear, a feature pioneered by its rival Snapchat that could limit the risks posed by a trail of social media posts that follow people throughout their lives.