There is something odd going on with this guy, but not so sure it's what he says it is. They seem to be releasing snippets of the interview daily, I guess to draw it out and increase interest.
What we do know is that he did hold a position within the DoD. We also know he is commenting of things he has been told or read, and hasn't actually seen anything himself.
We don't know his motive in coming forward now.
His body language in the first part of the interview has also been analysed and the view is that he doesn't believe , or want to believe, what he is saying.
Would love to believe, but his claims are still far less likely than somebody paying him to do this, or a way to make money and change career, or even just devilment.
But I'll continue to watch, apparently there is more to come.