Alvin M. Josephy Jr. was the founding chairman of the board of the National Museum of the American Indian. His many books include "Five Hundred Nations: An Illustrated History of North American Indians," Joane Nagel is chair of the sociology department at the University of Kansas and the author or editor of several books, including "American Indian Ethnic Renewal: Red Power and the Resurgence of Identity and Culture," Troy Johnson is an associate professor of American Indian studies and history at California State University, Long Beach, and the author of several books, including "The Occupati...