US President Joe Biden has declared white supremacy the most lethal threat to his country on the 100th anniversary of the Tulsa Race Massacre. During his visit to Tulsa, Oklahoma Biden said the country needs to acknowledge its dark history of racial injustice and avoid silence about it as he joined a commemoration marking the Tulsa massacre. Biden is the first sitting US President to do so, 100 years after one of America's darkest episodes of deadly racial violence. The massacre took place in June 1921 when mobs of white supremacists, who had been provoked by city officials, attacked Black residents in Tulsa’s Greenwood District, burning down their businesses, destroying some 1200 homes, and killing more than 300 African Americans.