Evidence against Iraq having a WMD program included information from CIA officer Valerie Plame, who, in a July 14, 2003 The Washington Post newspaper column by Robert Novak, was identified publicly as "an agency operative on weapons of mass destruction." Plame's husband, Ambassador Joseph C. Wilson IV had been sent by CIA to the African nation of Niger to investigate claims that Iraq intended to purchase uranium yellowcake from that country, which was incorporated in President George W. Bush's 2003 State of the Union address to support waging a preventive war against Iraq. See Iraq 2007 investigations for the aftermath of this claims and disclosures about them.