U.S. Spies Missed Urgency of Threat.

The article discusses the takeover of Mosul, Iraq by the terrorist organization the Islamic State, focusing on the analysis of the threat posed by the Islamic State by U.S. intelligence agencies. Other topics include the U.S. airstrike campaign against the Islamic State, the defeat of the Kurdish Peshmerga by the Islamic State, and the movement of Islamic State forces from Syria into Iraq.