The threat that dare not speak its name
"Why would Iraq attack America or use nuclear weapons against us? I'll tell you what I think the real threat (is) and actually has been since 1990 -- it's the threat against Israel," Zelikow told a crowd at the University of Virginia on Sep. 10, 2002, speaking on a panel of foreign policy experts assessing the impact of 9/11 and the future of the war on the al-Qaeda terrorist organisation.
"And this is the threat that dare not speak its name, because the Europeans don't care deeply about that threat, I will tell you frankly. And the American government doesn't want to lean too hard on it rhetorically, because it is not a popular sell," said Zelikow. 
53 Google hits on 1 April 2004, all dated March 31; no sign of independent confirmation.
98 hits on 3 April; no sign of retraction