Michael A. Elliott is Professor of English at Emory University. He is the author of The Culture Concept: Writing and Difference in the Age of Realism (Minnesota, 2002) and Custerology: The Enduring Legacy of the Indian Wars and George Armstrong Custer (Chicago, 2007). Priscilla Wald is Professor of English and Women's Studies at Duke University. She is the author of Constituting Americans: Cultural Anxiety and Narrative Form (Duke, 1995) and Contagious: Cultures, Carriers, and the Outbreak Narrative (Duke, 2008).