ties to Omar Abdel Rahman, a leading figure in the first World Trade Center bombing. Major Erik Kleinsmith Major Erik Kleinsmith, who was with the Army and chief of intelligence for LIWA until February 2001, testified that he was ordered to destroy Able Danger's information. "I deleted the data", he said. "There were two sets, classified and unclassified, and also an 'all sorts, which contained a blend of the two, "plus charts we'd produced." Kleinsmith deleted the 2.5 terabytes of data in May and June, 2000, on orders of Tony Gentry, general counsel of the Army Intelligence and Security Command. Other witnesses The Defense Department announced its findings on September 1, 2005, after a three-week investigation into Able Danger. The statement announced the discovery of three other witnesses in addition to Shaffer and Phillpott who confirm Able Danger had produced a chart that "either mentioned Atta by name as an al-Qaeda operative [and/or] showed his photograph." Four of the five witnesses remember the photo on the chart. The fifth remembers only Atta being cited by name. The Pentagon describes the witnesses as "credible" but stated that the document which allegedly mentioned Atta could not be found. The wall Former chief assistant U.S. attorney Andrew McCarthy and others have asserted that the Able Danger intelligence was suppressed as a result of a policy of forbidding the CIA and FBI to share intelligence known as "the wall." During the 9/11 Commission hearings, then-Attorney General John Ashcroft testified the wall was strengthened under the Clinton administration by Jamie Gorelick to prohibit sharing of terrorist intelligence within the federal government. This assertion was disputed by former senator Slade Gorton (R-WA), a member of the 9-11 Commission, who said, "nothing Jamie Gorelick wrote had the slightest impact on the Department of Defense or its willingness or ability to share intelligence information with other intelligence agencies." Gorton also asserted that "the wall" was a long-standing policy that had resulted from the Church Committee in the 1970s, and that the policy only prohibits transfer of certain information from prosecutors to the intelligence services and never prohibited information flowing in the opposite direction. Skepticism Two Attas theory Mickey Kaus of Slate.com, referring to Tom Maguire's "Two Attas" theory, speculates that "the 'Atta' fingered by Able Danger was really the first, 'Abu Nidal' Atta, and not the second, 9/11 'Al Qaeda' Atta", and that this may help explain this