Dr. David Jacobs is super interesting - was a career academic writing on the controversy around UFOs. Got his PhD at University of Wisconsin, taught at Temple University. His work is incredible, and I think he'd be a great interview, especially in light of Hatibow. He talks a lot about hybridization, and the top level of the alien hierarchy being "insectoid."
http://www.ufoabduction.com/
http://www.ufoabduction.com/