The debate about terrorism is highly emotional and while the anti-war left is dominated by pessimism, the anti-terrorist right is more defined by frustration. The right is not so much filled by optimism but rather a belief that facts are what they are, and in time the truth of history will win out and validate the hard decisions and harsh consequences.
The Path to 9/11: what this film also does is set the record straight on a number of events that the Clinton administration has previously tried to whitewash or ignore. That is the real reason why the left is going nuts over this. It wants to blame everything on Bush. Thus in its twisted logic, it cannot stand to see any criticism of Clinton whatsoever.
Furthermore, they will go nuts when confronted with the truth that the Patriot Act was necessary in order to get various government agencies to share vital information with each other. They will go nuts when the depiction of historical events end up making the case for airport profiling. In other words, this film will force them to specifically articulate what tools they wish to employ in order to keep this country safe. That seems to make them uncomfortable for some reason.
Diplomacy, not threats: The interesting news from the Middle East is that Israel, concerned about the prospect that Iran might eventually use its nuclear project to develop a rudimentary weapon of mass destruction, has established a top-level unit that has allegedly been charged with ensuring that the Iranians never develop operational nuclear weapons. That's reasonable. Iranian President Mahmoud Ahmadinejad has suggested that Israel is a "blot" on the planet that ought to be wiped away.