* Witnessed; The True Story of the Brooklyn Bridge UFO Abductions
* Intruders
* Sight Unseen: Science, UFO Invisibility and Transgenic Beings
I think what is most disturbing about the concept (to me anyway) is that, if the aliens are truly "out there", they treat humans a lot like we treat lab rats. From all reports, they don't see humans on the same level as them and *that's* what freaks me out about the idea of it. I'm with you, though, it's the very idea of it that I like it no matter how disturbing.