Did 11 US scientists connected to sensitive research die or go missing? What we know

A string of so-called "mysterious deaths and disappearances" prompted speculation that the incidents were connected.
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11 US scientists now dead or missing; Congress warns of ‘grave threat’ to national security

What began as a string of localized missing persons cases has officially evolved into a full-scale national security crisis. The list of dead and missing U.S. scientists has now grown to 11, prompting ...

At least 10 scientists tied to sensitive US research have died or disappeared in recent years, sparking federal investigation

At least 10 people tied to sensitive US nuclear and aerospace research have died or disappeared in recent years, prompting investigations into if the cases are connected.

Wave of missing or dead US scientists: Everything we know

The string of cases has fueled online speculation and drawn attention from Congress, federal agencies and President Trump.

The states where people go missing most — and what the data actually shows

According to the National Missing Persons Database, there are 26,403 open missing persons cases in the U.S.