National Museum of the American Indian - http://americanindian.si.edu/ Find information on exhibits, events, collections, education and outreach initiatives.
Bureau of Indian Affairs - http://www.doi.gov/bureau-indian-affairs.html Charged with enhancing the quality of life, promoting economic opportunity, and carrying out the responsibility to protect and improve the trust assets of American Indians, Indian tribes and Alaska Natives.
Navajo Code Talkers - http://bingaman.senate.gov/features/codetalkers/ During World War II, at a time when the Japanese possessed the ability to break almost any American military code, the Navajo stepped forward and developed the most significant and successful military code of the time.