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Story summary
- The Federal Bureau of Investigation (FBI) has joined the search for William Neil McCasland, a retired Air Force Major General, missing since February 27 in Albuquerque, New Mexico.
- Bernalillo County Sheriff's Office investigators are collaborating with the FBI and using advanced technologies.
- Susan McCasland dismissed theories linking the disappearance to his military background or UFO projects.
- Experts including astrophysicist Avi Loeb say disappearance is unlikely linked to McCasland's past work.
