Officials at the nation's premier nuclear weapons laboratory and in the surrounding northern New Mexico town began planning Friday for the return of thousands of residents and employees as firefighters held their ground on the flank of the massive wildfire, the largest in state history.
Residents downwind of a wildfire that is threatening the nation's premier nuclear-weapons laboratory are worried about the potential of a radioactive smoke plume if the flames reach thousands of barrels of waste stored in above-ground tents.
