The ideology behind the Rapid Support Forces' campaign of ethnic killing in Sudan

Ethnic killings in Sudan, documented to have been committed overwhelmingly by the RSF, have been called genocide by the US government. The World's Carolyn Beeler talks with reporter Nicholas Niarchos, who went to Sudan, and whose story about Sudanese fleeing the Rapid Support Forces reveals the ideology that drives the RSF's violent campaign against various ethnic groups throughout the country.