Facebook CEO, Mark Zuckerberg Is Not Happy With His Staffers For Crossing Out #BlackLivesMatter For #AllLivesMatter

Facebook C.E.O Mark Zuckerberg posted an 'angry' letter on his Facebook page, warning all his staffers who do cross out posts that read #BlacklivesMatter and replace them with #AllLivesMatter to desist from doing so, stating that #BlackLivesMatter movement is an important American social issue that shouldn't be joked with