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flag Specialist Richard McKinley is buried in a lead-lined, concrete-encased grave at Arlington National Cemetery due to radiation from the 1961 SL-1 nuclear accident.

flag The most dangerous gravesite in the U.S. is Army Specialist Richard McKinley’s burial at Arlington National Cemetery, where he was laid to rest just 22 days after dying from radiation exposure in the 1961 SL-1 nuclear accident in Idaho. flag The explosion, caused by a control rod being improperly withdrawn, killed two other operators and severely injured McKinley, who succumbed to acute radiation sickness. flag His body was buried in a double lead-lined casket inside a concrete-lined grave with an additional foot of concrete and encased in a metal vault, making it the only radioactive burial site in the cemetery. flag The site remains restricted due to residual radioactivity from long-lived isotopes.

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