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Improvements needed in security management of the United States Citizenship and Immigration Services

United States. Department of Homeland Security. Office of Inspector General.
Washington, DC : Dept. of Homeland Security, Office of Inspector General, Office of Information Technology,, [2005] 2005

U.S. Citizenship and Immigration Services' progress in modernizing information technology

United States. Department of Homeland Security. Office of Inspector General.
Washington, DC : U.S. Dept. of Homeland Security, Office of Inspector General, [2006] 2006

U.S. Citizenship and Immigration Services' progress in modernizing information technology

United States. Department of Homeland Security. Office of Inspector General.
Washington, DC : U.S. Dept. of Homeland Security, Office of Inspector General, [2009] 2009