The US government has hundreds of miltary bases in other countries, military spending is where 50% of your tax dollars go, there are huge profits to be made by big business in this. One thing that is needed is that human consciousness of the problem, (minus the propaganda indoctrination) needs to be raised to a higher level, I see signs of this happening, but as yet it is not enough yet to make the sweeping changes that are needed so that we don't wind up inihilating the whole human race, our consciousness has not keep up with our technology of weapon making, profits and self interest put us in the dangerous path leading to nonexistance:
http://video.google.com/videoplay?docid=-1527005784001008656