A University of Arizona atmospheric physicist, James E. McDonald kept going back to old cases. In 1968 he interviewed both Chiles-Whitted pilots, by then jet captains, and they still described a vehicle. That same year he took the Levelland case to a House symposium. He told Congress that ten vehicles had been stopped within a short area in a 2-hour period. He also looked again at the Rex Heflin photographs from Santa Ana, checking the radio cutoff and the weather. He disputed the balloon verdict in the Gorman Dogfight as well.
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University of Arizona atmospheric physicist who re-interviewed both pilots in 1968

Atmospheric physicist who checked the balloon claim in the late 1960s

University of Arizona atmospheric physicist who raised the case before Congress in 1968

Atmospheric physicist who interviewed her in 1967

Atmospheric physicist who interviewed Carson in 1966 and disputed the Air Force explanation

Physicist who reinvestigated the case in 1967 and 1968

University of Arizona scientist who taped an interview with Sullivan in July 1967

University of Arizona scientist who interviewed Greenwood in 1967
