ByJON MICHAEL RAASCH, US POLITICAL REPORTER

Published:10:11 EDT, 20 April 2026|Updated:11:11 EDT, 20 April 2026

Lawmakers are demanding a sweeping investigation into the mysterious disappearances and deaths of nearly a dozen top US scientists with top-level security clearances, citing national security concerns.

At least 11 scientists with ties toNASA, nuclear research, aerospace programs, and classified projects havevanished or turned up dead in recent years.

Many of the individuals, including researchers from NASA's Jet Propulsion Laboratory and Los Alamos National Laboratory, had access to sensitive information on space missions, nuclear technology, or advanced defense systems, prompting speculation about possible 'sinister' connections.

In light of the concerning deaths and disappearances, top lawmakers are now demanding that theFBI,Pentagon, NASA and the Department of Energy open probes into the cases.

'The Committee on Oversight and Government Reform is investigating recent unconfirmed public reporting on the disappearance and death of individuals with access to sensitive U.S. scientific information,' Republican Chairman James Comer wrote in letters sent on Monday.

'These reports allege that at least ten individuals who “had a connection to U.S. nuclear secrets or rocket technology,” have “died or mysteriously vanished in recent years,"' he writes.

'If the reports are accurate, these deaths and disappearances may represent a grave threat to U.S. national security and to U.S. personnel with access to scientific secrets.'

Comer specifically notes the 'possible sinister connection between a string of mysterious deaths and disappearances which began in 2023.'

Source: Drudge Report