CNN: Mosul Dam in danger of collapse

CNN - The Mosul Dam, the largest dam in Iraq, is in danger of "catastrophic failure."

The Mosul Dam is a two-mile-long barrier that can hold back as much as 441 million cubic feet of water, and if breached, half a million Iraqis could be at risk.

'In the event of a breach, there is the potential in some places for a flood wave up to 45 feet high that could sweep up everything in its path, including people, cars, unexploded ordnance, waste and other hazardous materials,' US Ambassador to the UN Samantha Power said.

It is expected that the entirety of the city of Mosul would be flooded within four hours of a breach.