I'm not to sure of this as I dont have the book to hand (Above Top Secret), but wasn't there a report that the crew of the eagle (Armstrong et al), when they left the module, turned round and found themselves looking at alien craft at the top of a crater? (The following file was posted on InfoNet LondonOntario)

    Is  there an "Alien Base" on the Moon. More and more people are coming  forward  with stories of an Alien presence on the Moon.  Rumors  are  that their "Moon Base" is on the dark  side of the moon, the side we never see from Earth.

    Did you ever wonder why the Moon landings stopped and why have we not tried to build a Moon Base. It seems a better and easier idea than a floating space station?

    According  to Neil Armstrong the Aliens have a base on the Moon and  wanted us to get off and stay off the Moon! Milton Cooper a Naval   Intellegence  Officer  tell  us  that  the Intellegence community calls the Alien Base "Luna":

    LUNA:     The  Alien  base on the far side of the Moon.  It was seen  and filmed by the Apollo Astronauts.  A base, a mining operation  using very large machines, and the very large alien craft described in sighting reports as MOTHER SHIPS exist there. - Milton Cooper

    According  to hitherto unconfirmed reports, both  Neil Armstrong and  Edwin  "Buzz" Aldrin saw UFOs shortly  after that historic landing  on  the Moon in Apollo 11 on 21 July 1969.  I remember hearing  one  of  the astronauts refer to a "light" in or  on a crater during the television transmission, followed by a request from  mission control for further information. Nothing more was heard.

    According  to a former NASA employee Otto Binder, unnamed radio hams with their own VHF receiving facilities that bypassed NASA's broadcasting outlets picked up the following exchange:

NASA:     Whats there? 
                 Mission Control calling Apollo 11...

Apollo11: These "Babies" are huge, Sir! Enormous!
          OH MY GOD! You wouldn't believe it!
          I'm telling you there are other spacecraft out there,
          Lined up on the far side of the crater edge!
          They're on the Moon watching us!

    In  1979 Maurice Chatelain, former chief of  NASA Communications Systems  confirmed that Armstrong had indeed reported seeing two UFOs on the rim of a crater. "The encounter was common knowledge in  NASA,"  he revealed, "but nobody has talked  about  it until now."

    Soviet  scientists  were  allegedly  the  first  to  confirm the incident.  "According  to  our  information,  the encounter was reported  immediately after the landing of the module," said Dr.  Vladimir  Azhazha,  a physicist and Professor of Mathematics at Moscow University. "Neil Armstrong relayed the message to Mission Control  that  two large, mysterious objects were  watching them after  having landed near the moon module. But his  message was never heard by the public - because NASA censored it.  "According to another Soviet scientist, Dr. Aleksandr Kazantsev, Buss Aldrin took  color  movie film of the UFOs from inside the module, and continued  filming them after he and Armstrong went outside.  Dr.  Azhazha   claims  that  the
UFOs departed  minutes  after the astronauts came out on to the lunar surface.

    Maurice   Chatelain  also  confirmed  that  Apollo   11's radio transmissions  were interrupted on several occasions in order to hide  the  news from the public.  Before dismissing Chatelain's sensational claims, it is worth noting his impressive background in the aerospace industry and space program. His first job after moving  from France was as an electronics engineer with Convair, specializing in telecommunications, telemetry and radar. In 1959 he was in charge of an electromagnetic research group, developing new radar  and telecommunications systems for Ryan. One  of his eleven patents was an automatic radar landing system that ignited retro  rockets  at  a  given altitude, used  in  the Ranger and Surveyor flights to the Moon. Later, at North American Aviation, Chatelain  was  offered  the job of designing and  building the Apollo communications and data-processing systems.

    Chatelain  claims  that  "all  Apollo  and  Gemini  flights were followed, both at a distance and sometimes also quite closely, by space  vehicles of extraterrestrial origin - flying saucers, or UFOs,  if  you  want to call them by that name. Every  time it occurred,  the  astronauts  informed Mission Control,  who then ordered absolute silence." He goes on to say:

     "I think that Walter Schirra aboard Mercury 8 was the first of  the  astronauts to use the code name  'Santa  Claus' to indicate  the  presence  of flying  saucers  next  to space capsules. However, his announcements were barely noticed by the general  public. It was a little different  when James Lovell
on board the Apollo 8 command module came  out from behind  the moon and said for everybody to hear: 'PLEASE BE INFORMED  THAT THERE IS A SANTA CLAUS.'  Even  though this happened on Christmas Day 1968, many people sensed a hidden meaning in those words."

    Rumors  persist. NASA may well be a civilian agency, but many of its  programs  are funded by the defence budget and most of the astronauts  are subject to military security regulations. Apart from the fact that the National Security Agency screens all films and probably radio communications as well. We have the statements by  Otto Binder, Dr. Garry Henderson and Maurice Chatelain that the  astronauts  were under strict orders not  to discuss their sightings.  And Gordon Cooper has testified to a United Nations committee that one of the astronauts actually witnessed a UFO on the ground.  If there is no secrecy, why has this  sighting not been made public?

    A certain professor, who wished to remain anonymous, was engaged in a discussion with Neil Armstrong during a NASA symposium.

Professor:       What REALLY happened out there with Apollo 11?

Armstrong:     It  was incredible, of course we had always
                 known there  was  a possibility, the fact  is,
                 we were warned  off!(by the Aliens). There was
                 never any question then of a space station or a
                 moon city.

Professor:       How do you mean "warned off"?

Armstrong:     I can't go into details, except to say that
                 their ships  were far superior to ours both in
                 size and technology  - Boy, were they
                 big!...and menacing!
                 No, there is no question of a space station.

Professor:       But NASA had other missions after Apollo 11?

Armstrong:     Naturally  - NASA was committed at that time,
                 and couldn't risk panic on Earth. But it really
                 was a quick scoop and back again.

Armstrong  confirmed  that the story was true but refused  to go into further detail, beyond admitting that the CIA was behind the cover-up.