Since George Floyd died in Minneapolis with a white police officer’s knee on his neck, new conversations about racism and discrimination have begun all over the world. It’s not just about policing, it’s about business, sport, culture – every aspect of life. HARDtalk’s Stephen Sackur speaks to Andre Leon Tally who was creative director of American Vogue magazine when the fashion industry was almost devoid of senior black men. He’s just written a controversial memoir of his life in what he calls “the chiffon trenches”. Why did it take him so long to speak out on race?