Stewart Udall, former Interior secretary, environmental leader and political patriarch, dies at 90

Former U.S. Interior Secretary Stewart Udall--uncle of U.S. Sen. Mark Udall of Colorado, father of another senator and patriarch of one of the West's leading political families—passed away March 20th at his Santa Fe home. He was 90. Stewart, previously a congressman from Arizona, sowed the seeds of the modern environmental movement as secretary of the interior during the 1960s under presidents John F. Kennedy and Lyndon B. Johnson. Later he became a crusader for victims of radiation exposure from the government's Cold War nuclear programs. Udall helped shape federal policies that have steered development of the West for half a century.