An expert on human rights and foreign policy, Samantha Power’s writings include the 2008 book “Chasing the Flame: Sergio Vieira de Mello and the Fight to Save the World,” about the slain U.N. diplomat; and “’A Problem from Hell’”: America and the Age of Genocide, which received the 2003 Pulitzer Prize, the National Book Critics Circle Award, and a Council on Foreign Relations prize.
