More than a million Iraqis are in danger of being killed if the poorly maintained Mosul dam collapses and the Tigris River rushes out. Maintenance work resumed on the dam Thursday as the Iraqi government signed a large contract with Italian engineering firm Trevi. The United States had warned of the dangers of a potential collapse earlier in the week. Authorities have warned people who live along the Tigris to move at least six kilometers away from the banks. Zlatica Hoke has more.