Several key witnesses made a number of startling claims at yesterday's subcommittee hearing on UFOs.
David Grusch - who previously worked with the National Geospatial-Intelligence Agency and held top-level clearance at the Unidentified Aerial Phenomena Task Force - told yesterday's congressional hearing that the US government had conducted a "multi-decade" program to recover and attempt to reverse-engineer crashed UFOs (or UAPs).
Citing "extensive interviews with high-level intelligence officials", he maintained that "non-human biologics" had been found at some of these crash sites and claimed that people had been "harmed or injured" as a result of government efforts to conceal this information.
Also speaking at the hearing was retired navy pilot Ryan Graves who claimed that he had personally witnessed UAPs off the Atlantic coast of the United States "every day for at least a couple years."
Emphasizing that such sightings were "not rare or isolated", he noted that these objects were repeatedly observed by pilots and crews "whose lives depend on accurate identification."
Former navy commander David Fravor also recounted his own experiences with UAPs.
When Grusch was asked whether or not he "absolutely" believes that the US government was in possession of UAPs, he replied: "absolutely, based on interviewing over 40 witnesses over four years."
Ultimately, though, while the hearing provided some intriguing testimonies, it didn't offer up any hard evidence and nothing that was claimed has been made official in any way.
As a result, it is likely that the mystery behind UAP sightings - as well as the truth behind Grusch's startling claims - are likely to remain a topic of heated debate for some time to come.