Remember the crop circles? Those things were showing up all over the world, so plenty of people were convinced that there was no other explaination for it other than extra terresterial activity. I think we all know how that turned out. It really is only the aluminum foil hat people who still believe crop circles are messages from space men.
Hmm, but them again if there is a NWO, I suppose this is exactly the type of reasoning they would want us to follow...