“This isn't to deny that there were fierce arguments, at the time and ever since, about the causes and goals of both the Civil War and the Second World War. But 1861 and 1941 each created a common national narrative (which happened to be the victors' narrative): both wars were about the country's survival and the expansion of the freedoms on which it was founded. Nothing like this consensus has formed around September 11th.... Indeed, the decade since the attacks has destroyed the very possibility of a common national narrative in this country.”