What to know about the missing scientists alarming Congress

Axios
by Donica Phifer
April 23, 2026
3 min read

Quick Insights

The Bottom Line

Congress is alarmed by the disappearances and deaths of at least 10 scientists working on nuclear and space programs.

AI Summary

The House Oversight Committee is investigating the disappearances and deaths of at least 10 scientists, researchers, and staffers connected to U.S. nuclear and space programs. These cases date back to at least 2023 and involve individuals from locations including California, New Mexico, and Massachusetts. Chairman James Comer (R-Ky.) and Rep. Eric Burlison (R-Mo.) sent letters to FBI Director Kash Patel, NASA administrator Jared Isaacman, Energy Secretary Chris Wright, and Defense Secretary Pete Hegseth, seeking information on the cases and procedures to protect scientific secrets. The inquiry was prompted by "unconfirmed public reporting," including the recent disappearance of retired Air Force Maj. Gen. William Neil McCasland from his Albuquerque home in February. The Oversight Committee has requested briefings from Patel, Hegseth, Wright, and Isaacman no later than April 27.

What's Being Done

The House Oversight Committee is investigating the cases and has sent letters to the FBI, NASA, Energy, and Defense secretaries seeking information.

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