'Gravest crime against humanity: Brazil still suffers from effects of slavery'

Carys Garland is joined by Jan Onoszko, our correspondent from Rio, standing at a site where history is embedded in stone, a physical threshold through which nearly a million enslaved Africans were forced into Brazil over four decades. The UN General Assembly just passed a resolution declaring the transatlantic slave trade the gravest crime against humanity. While the resolution is not legally binding, its symbolic force reverberates deeply, especially in a country like Brazil, which received nearly half of enslaved Africans and was the last nation to abolish slavery.