I thought it was pretty well done, although if you read the 9/11 Commission Report, as well as "Ghost Wars" by Steve Coll (about the CIA in Afghanistan, from the Russian invasion to the death of Massoud), you'll see several places in which the movie strays from the facts.
Concerning above comments, Massoud was killed on Sept 10--before the attacks, not after.
Although the Northern Alliance turned out to be our major ally in the overthrow of the Taliban and the attacks on Al Qaeda in Afghanistan, the closest we came to having a legitimate shot at Bin Laden involved CIA assets other than the NA. They operated in the north of the country, and are of a different ethnic group than the majority Pashtuns--and Bin Laden spent most of his time in the south, Pashtun country.
In the movie, CIA Director Tenet seems to take a lot of blame for foot dragging about attempts on Bin Laden. You have to remember that assassination was made illegal under executive order back in the mid-70's, and that executive order is still in force--even now. But even Clinton's legal team determined that since Bin Laden had attacked us (the embassies in Africa), killing him did not constitute assassination. The problem came in the specific instructions passed down to CIA from the White House, which kept telling them that Bin Laden could only be killed in a legitimate attempt to capture him. The real foot-draggers were Berger, Reno (who insisted that Bin Laden should be arrested), and Clinton himself--because he wanted "consensus" from his cabinet on how to deal with the situation.
Apparently, Clinton and company did succeed in having some scenes changed or deleted. Too bad the Republicans didn't have the same censorship privileges over Michael Moore's garbage.
