Benjamin Lessing, assistant professor of political science at the University of Chicago, studies "criminal conflict"--organized violence involving armed groups that do not seek formal state power, such as drug cartels, prison gangs, and paramilitaries. His focus is on Latin America: prior to graduate work at UC Berkeley, Lessing lived in Rio de Janeiro for five years, first as a Fulbright scholar, later conducting field research on arms trafficking in Latin America and the Caribbean for non-governmental organizations including Amnesty International, Oxfam, and Viva Rio, Brazil's largest NGO. He has received awards from the National Science Foundation, the Social Science Research Council, the Harry Frank Guggenheim Foundation, and the Smith Richardson Foundation. He is a contributor at The Monkey Cage, the Brookings Institution, the Inter-American Dialogue, among others.