Remote View what was happening between December of 1988 and April of 1989 at the location described by Robert Lazar Area S4, where he claims the the facility that deals with back engineering the ET crafts.
Personally after gathering data from different source I've come to conclusion that those aren't even ET crafts but man-made so called "ARV" or Alien Reproduction Vehicles. The reason that the place seems to have been renamed is because of the man by the name Richard Doty, who was interviewed by Steven Greer. He described that there's 2 separate facilities. One underground that stores ET crafts that is called S4 and the on one on surface that stores Alien Reproduction Vehicles. Althrough from Bob Lazar's description the S4 was the facility that was on the ground with 9 hangars storing each unique ET looking vehicle. Either they temporarily renamed the location or someone is spreading disinformation on where and what exactly was stored. Because the craft that Bob Lazar got inside was seamless, to small for average human being and had a very "Alien" looking "Barebones" interior with nothing that would look to be built for a human.
If to follow what Steven Greer was describing on Programmed Life Forms that appear like ETs that use these man man crafts to abduct people to make it seem "ET" then it appears clear that this is far bigger than what Bob was told about in the briefings that he read. Another interesting part, was the description by Richard Doty on the film that he and other workers were shown at the time on the Area 51 of the Roswell event that clearly showed Egg shaped seamless crafts that were stuck down by the so called "Scalar Longitudional Electromagnetic Weapons" that as described by one of insiders, were used for a long time to strike down more than hundred of these things over long period of history. Roswell was one of them according to these people. Really was interesting seeing Dick Allgire describe an almost weather like, artificial "lightning" that appeared out of nowhere and struck down the craft. So far pieces match.
Secret government strikes down ET crafts using Scalar weapon
Reverse engineers or already uses the ones that crash but remain functional to spread idea that ETs are abducting people.
The famous "Cow mutilation" was described to be also one of those secret unackowledged operation using programmed ETs to get samples of tissue from Cows and possibly other animals for use of cloning more of these ET looking beings.