Bruce E. JohansenBruce E. Johansen is Frederick W. Kayser Professor of Communication and Native American Studies, University of Nebraska. He is the author of dozens of books, including The Dirty Dozen: Toxic Chemicals and the Earth's Future, The Globl Warming Desk Reference, and The Native Peoples of North America. He is series editor of Praeger's Native America: Yesterday and Today. Read More Read Less