12,000 evacuated in Germany as WWII bomb defused

About 12,000 people were evacuated from Potsdam on Thursday as explosive experts worked to remove an unexploded World War II bomb. The city center, main train station and government offices were sealed off as the 250 kilogram American bomb was being defused. The bomb was found Tuesday on a construction site in the city, just outside Berlin. The bomb was the fourth found in the vicinity in the past two years.