I get the sense that TD couldn't elaborate in too much detail. No shit! So of course Joe Rogan had to drill TD on various things.
Considering not only the years and centuries of UFO & ET encounters, there is a mythology that stretches back thousands of years. Not just 7 or 14 decades. Thus, TD & Co are just a small component of this ongoing disclosure effort. This UFO - ET disclosure process is so constipated that it's no wonder some people would like to give it an enema!
https://en.wikipedia.org/wiki/List_of_reported_UFO_sightings
https://en.wikipedia.org/wiki/List_of_reported_UFO_sightings
I wish TD & Co all the best for their attempts of disclosure.
However, there is a larger set of circumstances and powers in place that tends to limit or even thwart what various people are trying to get out into the open.
http://www.history.co.uk/shows/ancient-aliens/articles/do-aliens-exist-most-compelling-evidence-of-alien-existence
http://www.history.com/topics/history-of-ufos
http://www.history.com/topics/history-of-ufos
http://www.huffingtonpost.ca/entry/ufos-pilots-history-channel_n_935847 Aug 2011
UFO fleet crosses Seoul, South Korea and makes headlines
UFO fleet crosses Seoul, South Korea and makes headlines
