A UFO whistleblower has claimed that a missing Air Force general was a 'hostile witness' who refused to disclose top secret information to Congress before his disappearance. 

Air Force veteran David Grusch, this week, specifically named retired Air Force General William Neil McCasland as one of the officers who had been in charge of classified programs related to non-human craft recovery and reverse-engineering.

However, Grusch alleged that the general, who vanished without a trace on February 27, had not been cooperative with lawmakers seeking to interview individuals with knowledge of America's alleged contact with extraterrestrials. 

Grusch, who is now an advisor to Missouri Congressman Eric Burlison, became a whistleblower and testified before Congress in 2023, after allegedly learning that elements of the government had been hiding UFO retrieval and reverse-engineering programs for decades.

He added that forces within the US government are still working to cover up the Trump Administration's attempt to reveal all files related to UFOs and the search for alien life.

The former intelligence officer recommended that Congress start issuing subpoenas to current and former members of the government or military who had refused to testify as the White House's push for full UFO disclosure draws closer.

Grusch said: 'They already have the list of some of these hostile folks that ran those programs. Unfortunately, one of those individuals, Major General retired Neil McCasland, is currently missing, which is very concerning to me as well.'

Using the authority from classified laws passed by Congress, Grusch explained that he had been tasked by lawmakers to interview dozens of credible military and intelligence officials ahead of UFO disclosure.

The whistleblower told Chris Farrell on Judicial Watch that about 40 people have been helpful, with roughly a dozen giving sworn testimony on classified projects to the Intelligence Community Inspector General (ICIG).

Grusch described these fellow whistleblowers as witnesses with firsthand knowledge who either 'touched' potentially non-human materials or had been inside the top-secret facilities where they were being kept.

However, he also revealed that McCasland was on a list of potential witnesses who had been labeled as 'hostile' because of their reluctance or active resistance to sharing information on alleged UFO research.

The missing general reportedly had ties to both nuclear and UFO-related government programs, overseeing operations for the Air Force Research Lab at both Wright-Patterson Air Force Base in Ohio and Kirtland Air Force Base in New Mexico.

Wright-Patterson has been tied to rumors of secret UFO projects for decades, with former government scientists alleging that debris from an alien spacecraft that allegedly crashed in Roswell, New Mexico was taken to this base for analysis.

Just eight days after President Trump publicly ordered the Pentagon to release all files on UFO activity, McCasland walked out of his New Mexico home with only a handgun and has not been seen since.