To me, "aliens" covers all theories. It's something alien to us. The general public thinks ET when they hear that word. People can do themselves a favor and read John Keel's "Operation Trojan Horse" (OTH) because he goes over the history of ufologists insisting that we're dealing with ETs. Meanwhile, other theories WERE out there, and that goes back to the late 40s.OTH Excerpt:"The explosion of public interest in the UFO phenomenon in 1947 attracted many highly qualified professional scientists,