... a forthcoming PBS documentary asks whether the NSA could have prevented 9/11 if it had been more willing to share its data with other agencies.
Author James Bamford looked into the performance of the NSA in his 2008 book, The Shadow Factory, and found that it had been closely monitoring the 9/11 hijackers as they moved freely around the United States and communicated with Osama bin Laden's operations center in Yemen. The NSA had even tapped bin Laden's satellite phone, starting in 1996.
"The NSA never alerted any other agency that the terrorists were in the United States and moving across the country towards Washington," Bamford told PBS.
PBS also found that "the 9/11 Commission never looked closely into NSA's role in the broad intelligence breakdown behind the World Trade Center and Pentagon attacks.
Former CIA analyst Michael Scheuer told PBS, "None of this information that we're speaking about this evening's in the 9/11 Commission report. They simply ignored all of it."
Not only was then-Director Michael Hayden never held accountable for the NSA's alleged failure, but he went on to oversee the Bush administration's vast expansion of domestic surveillance. In 2006, he was appointed as director of the CIA.
