Since you follow Dolan you may have seen this video about disclosure planning during the Carter administration:
https://www.youtube.com/watch?v=0xONIbuIYHY
They were going to put real alien artifacts and bodies on a government train traveling around the country in the 1970s as public disclosure—a tourist trap.
It is hilarious in retrospect—and of course did not happen.
As an aside, it is always interesting to hear people speak of alien bodies and recovered craft in the past tense (as though the beings are not still here and still a potential ontological shock).;-)
Love Dolan. He always does a great job. A first-rate guy.