They aren't of of American origin and likely possess an unknown exotic propulsion system (Twinning Memo) They are highly maneuverable (Twinning Memo) They sometimes travel in formations of multiple vehicles (Twinning Memo) They possess no known offensive armament (multiple USAF/USN sightings and associated footage). That being said, they can express hostile intent as there was one incident where an F-22 was boxed in by multiple spherical UAPs (Matthew Brown's HHRG-118-GO12-20241113-SD003 from congress.gov). They are more so a flight safety risk than a credible conventional threat due to the close proximity they need to be within to threaten the safety of American pilots. The technology was surprisingly easy to reverse engineer at least on paper with plans already having been made for a prototype by 1955 (CW Cheek Memo). This could imply wreckage had been recovered by then. Crash retrieval and reverse engineering programs still exist to this day albeit under highly classified conditions (David Grusch's July 26, 2023 Testimony). submitted by /u/Fair-Pen1831 [link] [comments]