The U.S. has launched 68 airstrikes against ISIS militants over the past 10 days, about half of which were targeted around a strategically critical dam outside of Mosul, Iraq's second-largest city.

Iraq’s Mosul Dam has been called one of the most dangerous dams in the world. If it fails, it could unleash a disaster of unimaginable scale. In this video, we dive into the risks, structural issues, ...