Facebook blames "Faulty Configuration" for Global Outage

On Monday, Facebook along with Instagram and Whatsapp all went down for most of the day. Facebook says that they were working on upgrades that caused the outage, however, workers indicate being locked out of building and the system. What was really going on and what was Facebook doing? This comes just a day after whistleblower, Frances Haugen, has interview with 60 Minutes on CBS.