https://www.reuters.com/article/tech-websummit-facebook/facebook-whistleblower-haugen-urges-zuckerberg-to-step-down-idUSKBN2HM35D >LISBON (Reuters) -In her first public address since she leaked a trove of damaging documents about Facebook's inner workings, whistleblower Frances Haugen urged her former boss, Mark Zuckerberg, to step down and allow change rather than devoting resources to a rebrand.