DHUMAIR: There was no mistaking the reek of death that rose along the Syrian desert highway four nights a week for nearly two years. It was the smell of thousands of bodies being trucked from one mass grave to another, secret location. Drivers were forbidden to leave their cabs. Mechanics and bulldozer operators were sworn to silence and knew they’d pay with their lives for speaking out. Orders for “Operation Move Earth” were verbal only. The transfer was orchestrated by one Syrian colonel, who would ultimately spend nearly a decade burying Syrian President Bashar Assad’s dead.

The Assad regime ran a clandestine two-year operation to exhume and secretly relocate thousands of bodies from one of Syria’s largest mass graves to a...

DHUMAIR: There was no mistaking the reek of death that rose along the Syrian desert highway four nights a week for nearly two years. It was the smell of thousands of bodies being…