Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Jim Sciutto spoke with Defense Secretary Chuck Hagel about the CIA, fighting ISIS and the failed hostage rescue.
Sources say one of Abu Bakr al-Baghdadi's wives was arrested near the Syria-Lebanon border. Jim Sciutto reports.
The National Security Agency's head said China has the ability to shut down our nation's power grid. Jim Sciutto reports.
CIA Director John Brennan has ordered a review of the agency's organizational structure amid new terror threats.
A suicide car bomb detonated near an Iraqi government building, killing at least four people. CNN's Jim Sciutto reports.
CNN's Jim Sciutto reports there may not be enough drones to keep up with the U.S. battle against growing terror threats.
Russia has denied allegations that it has sent weapons inside Ukraine. Jim Sciutto reports.
Ukraine prepares for fighting as Russian forces move weapons and troops into the country. Jim Sciutto reports.
CNN's Jim Sciutto reports on the collapsing ceasefire between Ukraine and pro-Russian separatists. Full story
Accusations Russia behind new Ukraine violence
Wolf Blitzer talks to Daniel Baer, U.S. Amb. to Org. for Sec. & Cooperation in Europe about the recent violence in the region.