Mark Zuckerberg has reacted to the deaths of a number of African Americans resulting from police brutality and he disclosed the efforts he’s making to use his platform to combat racial injustice.   The Facebook founder mourned the murder of, not just George Floyd, but also Breonna Taylor, Ahmaud Arbery and others.   He condemned police brutality saying it “reminds us how far our country has to go to give every person the freedom to live with dignity and peace.”   …