A number of unexplained deaths and disappearances involving scientists in the United States should be treated as a potential national security concern rather than isolated incidents, according to physicist and science communicator Michio Kaku.
In comments to Fox News Digital, Kaku said the apparent clustering of cases involving individuals with access to sensitive research was unusual and warranted closer scrutiny by government agencies.
,"If 10 scientists suddenly die or vanish who all have access to sensitive research, this is cause for national concern," he said.
He added that while a single unexplained case might not indicate a broader threat, a pattern involving multiple individuals with advanced security clearances "significantly raises the stakes".
,Cases Under Scrutiny ,Several of the incidents involve scientists working in fields such as nuclear technology, aerospace engineering and classified defence research — areas considered strategically important.
,One of the most closely followed cases is that of William Neil McCasland, a former commander of the Air Force Research Laboratory.
He was reported missing earlier this year from his home in New Mexico, after reportedly leaving behind personal belongings including his phone and glasses.,,McCasland had previously worked on highly classified programmes and had links to Los Alamos National Laboratory, a key centre for nuclear weapons research.
,Other cases have involved researchers connected to NASA Jet Propulsion Laboratory as well as private-sector scientists working on federally funded projects.
In some instances, remains were discovered months after disappearances were reported, while in others no public cause of death has been given.
,Authorities have said the circumstances vary and that no official link between the cases has been established.
,Calls for Investigation ,Some officials have called for a coordinated federal response.....
