Read the report directly (and avoid the spinning on both sides) here:

The National Commission on Terrorist Attacks Upon the United States (also known as the 9-11 Commission), an independent, bipartisan commission created by congressional legislation and the signature of President George W. Bush in late 2002, is chartered to prepare a full and complete account of the circumstances surrounding the September 11, 2001 terrorist attacks, including preparedness for and the immediate response to the attacks. The Commission is also mandated to provide recommendations designed to guard against future attacks.

Here’s a few links from different points of view: Time Magazine | Wonkette’s 9/11 Flow Chart | Talking Points | Instapundit