report on its findings, stating that it found "no credible evidence" of a "collaborative relationship" between pre-invasion Iraq and Al-Qaeda or of Iraqi involvement in the 9/11 attacks. The inability of the U.S. to find weapons of mass destruction in Iraq has led to greater domestic criticism of the administration's Iraq policy. Several of the statements that Bush and his administration made leading up to the war in Iraq, especially those involving claims of Iraqi weapons of mass destruction, have been criticized as misleading or inaccurate. Particularly controversial was Bush's claim in the 2003 State of the Union Address that British Intelligence had discovered that Iraq was seeking to buy uranium from Africa. Officials and diplomats disputed the evidence for this claim, especially after a document describing an attempted purchase from Niger, which was presented to the United Nations Security Council by Colin Powell, was found to be a forgery. This led to a public embarrassment for George Tenet, the director of the CIA, as well as the Valerie Plame scandal. Much criticism on these issues has come from political opponents of Bush. The Iraq war was a significant issue in the 2004 Democratic primary, including the campaigns of Howard Dean, John Kerry, Al Sharpton, and Dennis Kucinich. However, State Department documents declassified in 2006 cite hundreds of weapons of mass destruction found in Iraq. Nonetheless, it was soon quickly revealed that the particular weapons in question were WMD Saddam had obtained during the Iran-Iraq war, which had long since become stale and non-functional On March 24, 2004, Bush joked about the weapons of mass destruction issue at the annual White House Correspondents' Dinner. While showing slides of himself searching the Oval Office, he joked, "those weapons of mass destruction have got to be somewhere... nope, no weapons over there... maybe under here?" Some found it tasteless of him to be joking about the issue. Others defended the joke as being in line with the self-deprecatory sort of humor that has come to be expected of presidents when they speak at that event. On September 26, 2006, Bush declassified the key judgments of the April 2006 National Intelligence Estimate. The estimate, titled Trends in Global Terrorism: Implications for the United States, states the following: "We assess that the Iraq jihad is shaping a new generation of terrorist leaders and operatives; perceived jihadist success there would inspire more fighters to continue