... The Aliens Are Here.
I've always found the term Unidentified Flying Object intriguing. I presume that we have all, at some time or other, seen objects flying that we could not quite identify. But the person who talks of UFOs usually doesn't think they're unidentified at all, since the term is ordinarily used to refer to what is assumed to be an extraterrestrial aircraft. I have no problem with mysterious atmospheric phenomena, but I prefer that we not leap to conclusions about them.
That said, Bryan's book sounds terrific.