On 5/14/93, there were actually two UFO briefings prepared for President Clinton's Science Advisor. This second briefing, prepared by Dr. Bruce Maccabee at the request of Dr. Ronald Pandolfi at the CIA, was prepared in less than one day.
As far as we know this briefing was not presented. It arrived at the Science Advisor's office just as the UFO briefing given by Laurance Rockefeller was ending.
BRIEFING ON THE U.S. GOVERNMENT APPROACH TO THE UFO PROBLEM AS DETERMINED BY CIVILIAN RESEARCHERS DURING THE LAST TWENTY YEARS
During the early summer of 1947 hundreds or thousands of people including military saw shiny circular objects flying through the sky. Civilian researchers over the last 15 years have learned from several former Air Force officers that during this time the Air Force retrieved, from the desert near Roswell, New Mexico, debris with unusual physical properties, which evidently came from a non-man made device that crashed.
Based on the testimony of numerous witnesses and government documents some civilian researchers now believe that the government, with top level authorization, took a two pronged approach to the problem. On the one hand the Air Force set up an intelligence collection program at the Secret Restricted level run by the Air Material Command (AMC) at Wright-Patterson Air Force Base in Ohio. (TAB A, TAB B) On the other hand, the government at the compartmented level carried out analysis of the retrieved material and attempted to correlate this with sighting information collected through official channels. The compartmented project was completely independent of the collection effort.
Subsequently the Air Force set up three consecutive publicly-known projects to collect and analyze civilian and military sightings which did not involve debris (Project Sign, 1948-49; Project-Grudge, 1949-1951; Project Blue Book, 1952-1969). In 1952 the Battelle Memorial Institute, under Air Force contract, began a statistical study of over 3,000 sightings between 1947 and 1952. (TAB C) The statistics showed that on the average about 20 % were not explained and that of the best sightings (best witnesses, most complete reporting) over 30% were unexplained. The report included several examples of unexplainable sightings. (TAB D)
In 1967 the Air Force, at Congress' direction, supported an independent investigation at the University of Colorado. (TAB E) After about a year and a half the Director of the investigation concluded that "nothing had been learned" and that the Air Force should end its involvement. However, the Colorado investigators couldn't explain about 30 of the about 90 sightings it investigated. The American Institute of Aeronautics and Astronautics pointed out that the large percentage of unexplained was justification for continuing the investigation. (TAB F)
In 1969 the Air Force closed Project Blue Book and has not maintained a publicly known investigation since. However, the Air Force does admit to investigating sightings over Air Force Bases. (TAB G)
Other governments have taken a more open attitude toward the subject and some have set up official investigating groups. (TAB J) The recent (1989-1990) sighting flap in Russia and Belgium involved military Russian and Belgian jet "chases" of UFOs. General Igor Maltsev, in charge of the Air Defense of the Moscow Area, reported publicly that he had "more than 100 visual observations" compiled by military commanders concerning a UFO that was flying near Moscow and was detected on radar (TAB K). Later, General Ivan Tretyak, Chief of all the Russian Air Forces, confirmed Maltsev's report and hinted that Soviet developments to counter Stealth might provide further information about UFOs. (TAB L) Gorbachev, during a speech to workers in the Urals in the spring of 1990 said that UFO reports should be studied. (TAB M)
Serious investigators of this subject have concluded that some unusual phenomena have, in fact, been observed visually and on instruments (TAB N).
Furthermore, combining the early history of the Air Force approach to the subject with numerous documents and "leaked information" some investigators have concluded that there has been a compartmented study of debris and bodies from at least one crash of an alien craft.