"In September of 2002, as the Bush administration marked the one-year anniversary of the September 11th attacks with a push toward an invasion of Iraq, the White House made public a bold new foreign policy paper entitled: “The National Security Strategy of the United States.” The document outlined a radical new doctrine in American foreign policy: one of so-called “pre-emptive warfare.” The doctrine was used as the Bush administration's justification for the invasion of Iraq. Proponents say the doctrine is necessary in a world where terrorists might one day get their hands on weapons of mass destruction; critics say the new doctrine of unilateralism reflects a desire by the US to establish an empire. Today we bring you an excerpt of a new documentary, “Preventive Warriors,” produced by Michael Burns and Greg Ansin. The film features many of the leading thinkers and intellectuals of our time including Noam Chomsky, Chalmers Johnson, Tariq Ali and more. This is “Preventive Warriors.”