The Liberian immigrants had tried to keep a low profile since someone — a stranger? a neighbor? — distributed hundreds of fliers labeling them a threat to White children. A mile away, people woke up one September morning to small plastic bags on their lawns containing a picture of a Liberian man who had recently been convicted of killing a 14-year-old girl in Fargo. The caption invoked a racist theory that foreigners of color are “replacing” White Americans in the United States: “THE GREAT REPLACEMENT AND ITS CONSEQUENCES.”