Intelligence Community Directive Number 304: Human Intelligence (March 6, 2008) designates the Director of the Central Intelligence Agency as the National HUMINT Manager, responsible for developing and implementing standards for human source validation.
Interview with Curveball (BBC)
Colin Powell's UN Speech on Iraq (2003) (video in five parts)
Articles
The Real Story of "Curveball": How German Intelligence Helped Justify the US Invasion of Iraq, Erich Follach et al., Spiegel Online (2008)
Unresolved Questions Regarding US Government Attribution of a Mobile Biological Production Capacity by Iraq, Milton Leitenberg, Secrecy News, June 29, 2006
How U.S. Fell Under the Spell of 'Curve Ball', Bob Drogan, John Goetz, Los Angeles Times, November 20, 2005
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The Record on Curveball, edited by John Prado, National Security Archive Electronic Briefing Book No. 234
CIA Reports: DCI Special Advisor Report on Iraq's WMD
Key Findings, Volume 1, Volume 2, Volume 3 (2004)
Iraqi Mobile Biological Warfare Agent Production Plants (May 2003)
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Report of the Commission on the Intelligence Capabilities of the United States Regarding Weapons of Mass Destruction (2005) (Curveball is discussed in Chapter 7)
Diagnosing Distortion in Source Reporting: Lessons for HUMINT Reliability From Other Fields, George P. Noble Jr., Master's Thesis, Mercyhurst College
