the mannheim police went into high alert. >> yesterday evening an unidentified woman called the arena with a bomb threat. the arena informed the police and event organizers. they decided to interrupt the broadcast and evacuate the venue. >> it was the right decision for the safety of the spectators. rumors of a bomb scare were already going around. the tv channel had confirmed later that there had been a bomb threat. the police search lasted for hours and wasn't called off until the early morning. no bomb or any other suspicious objects were found. the police say they are investigating the anonymous call. some reports say the shows host and celebrity jurors were led to safely before -- safety before the audience was evacuated. anchor: celebrating 80 years of service. the subway system in the russian capital is considered one of the most beautiful in the world. brian: it first opened in 1935. 7 million people each and every day. it lets take a ride to the metro's history. a -- of culture for early-morning commuters. that is how the metro celebrates 80 years of service. while public tra