Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.
Wolf Blitzer talks to State Department Deputy Spokeswoman Marie Harf about ISIS' purported execution of Steven Sotloff, who defends the administration's strategy against ISIS and says the U.S. is looking for ways to "more aggressively take the fight to ISIS."
In a new video, ISIS claims to have murdered a second American and sends a chilling warning to President Obama. Is the U.S. safe from an attack by the brutal jihadist group? Rep. Michael McCaul, R-Texas, the House Homeland Security Chairman, weighs in.
ISIS has released a second video that shows the apparent beheading of American journalist Steven Sotloff, and now the U.S. intelligence community is working to confirm its authenticity - and discover whatever clues it can. CNN's Tom Foreman looks at audio and video forensics to compare this video to the one released two weeks ago.
Barbara Starr explores the possible reasons why CNN was granted rare interviews with American detainees in North Korea.
U.S. officials are evaluating a video that allegedly shows members of a Libyan militia jumping into a pool at the Embassy.
The people of Donetsk, in Eastern Ukraine, struggle to go on with their lives because of the constant shelling.
As ISIS sweeps across Iraq and Syria and strikes fear in the heart of Westerners, many are baffled about who this group is, where they came from, and what connection they have to other Islamist jihadi groups. CNN Chief National Security Correspondent Jim Sciutto explains the similarities and differences between ISIS and al Qaeda.
As ISIS tightens its brutal grip on vast stretches of Iraq and Syria, women are playing an active role in its reign of terror. CNN's Brian Todd has been looking into that.
Two close friends from a high school near Minneapolis were both killed fighting for extremist groups overseas. CNN's Ted Rowlands reports.
U.S. officials say 1,000 Russian troops have entered Ukraine as Ukrainian military slam Russia for a "full-scale invasion." CNN's Barbara Starr reports.