Well, actually the NWO is one of the most popular conspiracy theories, which has been mediated and rumored intensively, so that it's hard to tell what facts are true, and which are just some figments of the collective imagination. Aside from the NWO, there are several other conspiracy theories. Earlier we have discussed the most popular conspiracy theories.
But let's get back to the New World Order. The New World Order has a motto "Novus Ordo Seclorum" and it is considered to be an organization which consists of some of the richest and elite families in the world, who have an agenda to cabal against the sovereignty of states while installing a single authoritarian world government. In this way, it has become a convenient way to accuse political rivals of involvement in the NWO, or linking various events like wars or major terrorist attacks as being set up by this order. Visit Insider Monkey for the full details about the New World Order facts.