Alien Intrusion: UFOs and the evolution connection (updated & expanded)

When actor Richard Dreyfus gazed up into the heavens during the hit film, Close Encounters of the Third Kind audiences looked with him, in rapt attention. Alien encounters cropped up like, well, crop circles. More films were released. Books detailed alleged abductions. NASA funded SETI, an effort to make contact with civilizations from other worlds. But is all this valid? Are there really alien civilizations in our vast universe? In Alien Intrusion, Gary Bates gives a thorough treatment of this …