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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.

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.

September 15th, 2014
06:49 PM ET

More clues in new ISIS execution video

Brian Todd examines clues in the video of David Haines' execution. Do British authorities know who the executioner is?

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Filed under: Brian Todd • ISIS • National security • Terror
September 15th, 2014
06:38 PM ET

Anti-ISIS coalition continues to develop

CNN'S Jim Sciutto reports on which countries are joining the effort to battle ISIS and which ones are still hesitant.

September 15th, 2014
05:58 PM ET

Is killing suspect a jihadist?

Pamela Brown reports that a suspect in a string of killings might have been motivated by strong anti-U.S. sentiments.

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Filed under: ISIS • National security • Pamela Brown • Terror