Is the UN dead?

Wretchard summarizes the meaning of the Volcker Report:

The fundamental argument against international military action is the supposition that effective alternatives exist to contain rogue states and tyrants. But what if it does not? The Volcker Report essentially describes the history of the decade-long diplomatic battle to proscribe the movements of Saddam Hussein following the Gulf War. It is an account of the unmitigated defeat of the "international community" at the hands of Saddam; not only a defeat but a rout and a surrender. And although the surrender had already taken place, the world was told categorically by the capitulators themselves that they were fighting and winning the good fight against the forces of lawlessness. The problem with September 11 was not that it happened, but that it happened where it could not be ignored; this fact was the virtual third aircraft that crashed into Manhattan that day, striking somewhere in the vicinity of Turtle Bay.

Is the UN dead?

Is war the only answer?