The U.S. and other world governments already have detailed secret plans for first contact.When UFOs land, a series of plans created to deal with nuclear emergencies and biological attacks will be activated. Within the scientific community, the question is no longer whether extraterrestrial life exists, but if ET is smart enough to do long division. Scientists are of two minds regarding the existence of extraterrestrial intelligence. Skeptics acknowledge simple life-forms might be found on other planets, but insist that intelligent life is unique to Earth. Their belief is based on the assumption that Earth possesses unique physical attributes, including a...