"During the colonial period, Africans told each other terrifying rumors that Africans who worked for white colonists captured unwary residents and took their blood. In colonial Tanganyika, for example, Africans were said to be captured by these agents of colonialism and hung upside down, their throats cut so their blood drained into huge buckets. In Kampala, the police were said to abduct Africans and keep them in pits, where their blood was sucked....