A rhetorical question obviously, but based on this excerpt, clearly they need to:
The 537-page book describes tensions among senior officials from the very beginning of the administration. Mr. Woodward writes that in the weeks before the Sept. 11 attacks, Mr. Tenet believed that Mr. Rumsfeld was impeding the effort to develop a coherent strategy to capture or kill Osama bin Laden. Mr. Rumsfeld questioned the electronic signals from terrorism suspects that the National Security Agency had been intercepting, wondering whether they might be part of an elaborate deception plan by Al Qaeda.
On July 10, 2001, the book says, Mr. Tenet and his counterterrorism chief, J. Cofer Black, met with Ms. Rice at the White House to impress upon her the seriousness of the intelligence the agency was collecting about an impending attack. But both men came away from the meeting feeling that Ms. Rice had not taken the warnings seriously.http://www.nytimes.com/2006/09/29/washington/29account.html?_r=1&hp&ex=1159588800&en=3862efd9e06a71e9&ei=5094&partner=homepage&oref=slogin