Ibram X. Kendi: America's unhealed racial wounds

The fractures in American society are widening, over guns, abortion, education and more. But the deepest, most traumatic fracture is surely over race. The US is post slavery, post segregation, but definitely not post-racism. Stephen Sackur speaks to Ibram X. Kendi, an influential writer and academic who argues the only way to not be racist is to be actively antiracist - a message he says children must hear. Is his approach bound to intensify America’s internal conflict?