Obama administration:
"Over the past several months, we received intelligence — which was shared across our government — from our foreign partners about threats from AQAP and other terrorist groups," said CIA spokesman George Little. "The United States receives this kind of information from other governments on a regular basis, as you would expect. Last week, we received specific intelligence that allowed the United States and our allies to disrupt the cargo plot. Our actions were swift and aggressive."
http://www.msnbc.msn.com/id/40038498/ns/us_news-security/bu$h* administration:
Two Months Before 9/11, an Urgent Warning to Rice
On July 10, 2001, two months before the attacks on the World Trade Center and the Pentagon, then-CIA Director George J. Tenet met with his counterterrorism chief, J. Cofer Black, at CIA headquarters to review the latest on Osama bin Laden and his al-Qaeda terrorist organization. Black laid out the case, consisting of communications intercepts and other top-secret intelligence showing the increasing likelihood that al-Qaeda would soon attack the United States. It was a mass of fragments and dots that nonetheless made a compelling case, so compelling to Tenet that he decided he and Black should go to the White House immediately.
http://www.washingtonpost.com/wp-dyn/content/article/2006/09/30/AR2006093000282.html