Worker burned in fire at nuclear research lab

A sodium fire erupted on Friday at a U.S. Nuclear laboratory in Idaho, burning one worker, but the incident posed no risk to the public, the lab said. The incident was the second this week at the sprawling facility. Earlier this week, at least six workers were contaminated by low-level plutonium radiation and 11 others were exposed following a mishap at the lab. The chemical fire on Friday broke out in a building adjacent to a decommissioned, experimental reactor at the U.S. Department of Energy’s sprawling Idaho National Laboratory that is cooled by sodium, lab spokeswoman Sara Prentice said.