Mark Zuckerberg Blasts Facebook Staff for Replacing ‘Black Lives Matter’ with ‘All Lives Matter’ Facebook CEO Mark Zuckerberg reprimanded employees for replacing “Black Lives Matter†slogans with “All Lives Matter†on the walls of the company’s headquarters in San Francisco. In a private Facebook post obtained by Gizmodo, Zuckerburg told employees that their behaviour was “malicious†and “disrespectful,†and reminded them that there are “specific issues affecting the black community in the United States.†“This has been a deeply hurtful and tiresome experience for the black community and really the entire Facebook community, and we are now investigating the current...