Missing scientists conspiracy theory

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In 2026, a conspiracy theory emerged alleging that the deaths or disappearances of several people, some described online as "scientists" tied to classified or sensitive research, were connected to secret knowledge about UFOs, advanced energy projects, materials science, or related subjects. Speculation started spreading through social media following the February 2026 disappearance of former U.S. Air Force major general William Neil McCasland. It then began drawing wider media attention and comment from U.S. federal officials, including the FBI and Donald Trump. Cases cited by proponents span several years and involve unrelated circumstances, including natural death, homicide, suicide, and missing-person reports. Colleagues of those named, as well as experts and journalists, have rejected claims of a coordinated pattern. Medical sociologist Robert Bartholomew described the belief as an example of apophenia, or the tendency to perceive meaningful links in unrelated events. Multiple family members of those connected to the conspiracy theory have expressed anguish or grief at having their deceased relatives connected to what they have characterized as an absurdity. The FBI is investigating the missing scientists theory under a federal investigation. The House Oversight Committee is looking for information on the theory from various federal agencies. FBI director Kash Patel said, "If there's any connections that lead to nefarious conduct or conspiracy, this FBI will make the appropriate arrest."