"Martin Duberman is a national treasure." --Masha Gessen, The New Yorker Roger Casement was an internationally renowned figure at the beginning of the 20th century, famous for exposing the widespread atrocities against the indigenous people in King Leopold's Congo and his subsequent exposure--for which he was knighted in 1911--of the brutal conditions of enslaved labor in Peru. An Irish nationalist of profound conviction, he attempted, at the outbreak...