"CURVEBALL," an Iraqi defector who provided much of the information regarding Iraq's alleged mobile bioweapons labs, although much of the material in this part of the report has been redacted. The report concludes that the October 2002 NIE and other statements regarding Iraq's biological and chemical WMD and associated delivery systems were for the most part not supported by the underlying intelligence data supplied to the Committee. Committee Chairman Pat Roberts told NBC's Tim Russert that "Curveball really provided 98 percent of the assessment as to whether or not the Iraqis had a biological weapon." This was in despite the fact that "nobody inside the U.S. government had ever actually spoken to the informant—except [for a single] Pentagon analyst, who concluded the man was an alcoholic and utterly useless as a source." After learning the intelligence provided by Curveball was going to be used as the "backbone" of the case for war, the Pentagon analyst wrote a letter to the CIA expressing his concerns. The Deputy of the CIA Counter Proliferation Unit quickly responded by saying: "Let's keep in mind the fact that this war's going to happen regardless of what Curve Ball said or didn't say. The Powers That Be probably aren't terribly interested in whether Curve Ball knows what he's talking about." One area where the Committee found that the intelligence community's reporting accurately reflected the underlying intelligence concerned Iraq's retention of Scud-type ballistic missiles, and its development of new types of short- and medium-range missiles. In the case of the NIE's reporting on Iraq's development of an unmanned aerial vehicle (UAV), however, the Committee found that the reporting generally was not well-supported by the underlying intelligence, and overstated what was known concerning the likelihood that the Iraqi UAVs were intended for use as a delivery means for biological weapons. Colin Powell's speech to the UN Section VII of the Committee's report focuses on the intelligence behind Secretary of State Colin Powell's speech to the UN on February 5, 2003. The report describes the process whereby the CIA provided a draft of the speech to the National Security Council (NSC), and then, at the request of the NSC, worked to expand the speech with additional material, especially regarding Iraq's nuclear program. The report also describes the subsequent review made by Colin Powell and analysts from the State Department with analysts from the CIA. In the speech, Powell said