How Ahmaud Arbery's killing spurred a national reckoning

Jury selection is underway in the high profile case of white men accused of murdering Ahmaud Arbery, an unarmed Black man, in Georgia — one of the cases that set in motion a wave of racial justice protests nationwide in the summer of 2020. For our ongoing "Race Matters" series, William Brangham discusses the case with Gerald Griggs , vice president of the NAACP Atlanta chapter.