Peter Kornbluh is director of the National Security Archive's Chile Documentation Project. He led the campaign to declassify official documents of the secret history of the United States government support for the Pinochet dictatorship. That information has now been collected in the new book, The Pinochet File: A Declassified Dossier on Atrocity and Accountability. The book chronicles 20 years of policy in Chile from 1970 to 1990. This September 11th marks the 30th anniversary of the bloody coup that overthrew President Salvador Allende and led to the military dictatorship of General Augusto Pinochet.