The House Oversight Committee is investigating the deaths and disappearances of at least 10 scientists and staffers tied to nuclear and space programs, according to letters sent this week. Chairman James Comer (R-Ky.) and Rep. Eric Burlison (R-Mo.) requested information from the FBI, NASA, the Energy Department and the Defense Department. The probe covers cases dating back to 2023, with national security concerns at the forefront.
The committee's letters cited "unconfirmed public reporting" on the cases, including the recent disappearance of retired Air Force Maj. Gen. William Neil McCasland. McCasland, who worked at military labs and was involved in aerospace research, was last seen at his Albuquerque home in February. He had been retired for 13 years, according to a Facebook post from his wife.
No specific reason for the investigation was given in the committee's correspondence. The letters sought details on "the processes and procedures in place to protect American scientific secrets and ensure personnel safety." The FBI, NASA, Energy Secretary Chris Wright and Defense Secretary Pete Hegseth were all asked to provide information.
The disappearances span multiple years and involve personnel with access to sensitive scientific work. The committee's action signals growing concern among lawmakers about potential vulnerabilities in safeguarding both classified research and the people who conduct it.
It remains unclear whether the cases are connected or if foul play is suspected. The investigation is in its early stages, with agencies yet to respond publicly to the committee's requests.