Bomb-grade uranium to be shipped secretly from Chalk River, Ontario nuclear plant to U.S.

Nuclear officials are preparing to secretly transport a toxic stew of liquid bomb-grade uranium by armed convoy from Chalk River, Ont., to a South Carolina reprocessing site.

The “high priority” mission marks the first time authorities have attempted to truck highly-enriched uranium (HEU) in a liquid solution, prompting nuclear safety advocacy groups on both sides of the border to sound the alarm for greater government scrutiny.