President Eisenhower meeting with some of these visitors.

"To the best of my memory this brief was pervaded with a sense of hope, and it informed President Eisenhower of the continued presence of extraterrestrial beings here in the United States of America. The brief seemed to indicate that a meeting between the President and some of these visitors could be arranged as appropriate if desired."
Curiously, the revelations made by Ilyumzhinov and allegedly by McElroy are merely the latest in a long series of similar allegations of government involvement with extraterrestrials.
Tales of government involvement with extraterrestrial sources are known by insiders as the CORE STORY.
Different sources provide differing versions and interpretations of the CORE STORY, but generally begin with an alleged contact in 1947, during the Truman administration.
In 1983, a source who had recently left the USAF, told me off the record that "some very strange things" had been going on behind the scenes.
It was implied by this source that the Air Force had been involved with visitors from another world: "If you knew the truth about what is going on with the UFOs, you wouldn't be able to sleep at night."
I filed that small tidbit of information in the back of my mind, and didn't think much about it until 1988, and the broadcast of a TV special called UFO Cover-up Live.
During the program, which was broadcast on national television, two sources, identified as former intelligence officials, made the outrageous claim that the United States government had been involved with the aliens since the Truman administration, and had hosted three visiting extraterrestrial ambassadors.

Twenty-three years after my USAF source first revealed strange goings-on in the Air Force, another much better placed source provided three dates of alleged government contact with extraterrestrials: 1947, 1983, and 1992.
Over the years, several American astronauts have come forward concerning their belief in an extraterrestrial presence.
In his autobiography, the late Gordon Cooper, a former fighter pilot and member of the original seven Mercury astronauts, wrote about receiving telepathic transmissions from extraterrestrial sources. According to Cooper's account, the information involved technical details concerning the design of the space shuttle, and was passed on to NASA engineers.
Astronaut Dr. Edgar Mitchell, the sixth man to walk on the moon, has been outspoken about his belief that the government has been hiding the existence of alien visitors.
Mitchell stunned listeners to Britain's Kerrang Radio when he revealed, "I happen to  be privileged enough to be in on the fact that we have been visited on this planet, and the UFO phenomenon is real, although it has been covered up by governments for quite a long time."

Other unnamed sources, requesting anonymity to protect their professional involvement with the government, have made similar claims "on background" concerning what they had been told about the alien presence from senior government officials.
Paraphrasing one source's off the record statement, "It happened. Believe it."
Recent attempts to improve government transparency have only added to the 'high strangeness' surrounding the UFO alien encounter tales.
Among the Defense Intelligence Agency STAR GATE files, which chronicle the US government's paranormal phenomena units from the 1960s until the CIA takeover in 1995, are documents concerning psychic perception of extraterrestrials on Earth and in our solar system. It has been rumored that some of the psychic spy operations were blocked by "an unknown extraterrestrial source," according to an account obtained by investigative author Gus Russo, from a source familiar with recent psychic operations managed by the National Security Agency. An independent source living in the United Kingdom confirmed some of the same details provided by Russo's NSA source, adding that DIA was also involved.
According to unconfirmed accounts, previously reported by former New York Times journalist Howard Blum, psychic spies were used by the DIA to track the movement of Soviet submarines -- and, on occasion, a psychic spy would 'observe' a flying saucer shadowing the nuclear-armed submersibles.
In 1998, the DIA's key psychic, Ingo Swann, who held TOP SECRET clearance for his role in developing the military psychic spy unit, published an account of his personal involvement with a secret black operation and extraterrestrial visitors who looked remarkably human, but possessed penetrating 'telepathic' powers.
Several persons allegedly associated with futurist John L. Petersen's think tank, The Arlington Institute (TAI), have reported they heard about the government's CORE STORY.
According to an account provided by Catherine Austin Fitts, several persons, including former Director of the CIA, James R. Woolsey (who had been listed among the TAI Board of Directors) were involved in discussions concerning the alleged extraterrestrial presence in the late 1990s.
Former US Web CEO Joe Firmage, who was also originally identified as a member of the TAI board, spent tens of thousands of dollars promoting his belief in the alien presence, by placing full page advertisements in USA Today and The Wall Street Journal.

Dan T. Smith, who often provides bits of information he says are sourced from his associate Ron Pandolfi (a former CIA analyst and contributor to National Intelligence Estimates for the National Security Council under the Office of the Director of National Intelligence), revealed that shortly after 9/11, briefings about the extraterrestrial presence had been given to government officials. According to Smith, the briefings began with a small group of perhaps twenty, then later two-hundred, and possibly even more, before the decision was made to end the disclosure process, sometime in 2004.