I use to work with an ex USAF guy in telcom network control..his background was satellite control in Colorado Spring... We got to talking late one Fri night grave shift about the moon missions and when I commented that it was sad we hadn't gone back his response was our you sure about that... bottom line he hinted around that there was some US miltary moon mission in the 80's to set up a earth monitoring post ...the moon being the ultimate military high ground to monitor earth from
probably just pulling my leg but food for thought