Atlanta airport fire strands thousands, slams travel system

ATLANTA (AP) — The nation's air-travel system struggled to get back on schedule after a weekend power outage at the Atlanta airport, the world's busiest, forced the cancellation of over 1,400 flights just days before the start of the Christmas rush.A fire in an underground service tunnel brought Hartsfield-Jackson Atlanta International Airport to a standstill Sunday. The fire broke out next to equipment for a backup system, causing that to also fail. Power wasn't fully restored until about