In his final speech as commander in chief Obama touts his counterterrorism policy wins. The president also cautioned Donald Trump against following through on his campaign rhetoric.

Twenty-eight people were killed and 60 injured when three suicide bombers detonated devices at the Atatürk airport in Istanbul, Turkey, Tuesday night, The New York Times reports.

President Obama on Monday said the shooter may have been radicalized by "various extremist information that was disseminated over the internet."

An anonymous Egyptian forensic expert said an explosion is the likely cause of the EgyptAir crash. But Egyptian officials rejected that report.

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Charles Keating IV was killed in a "coordinated and complex attack" by roughly 100 ISIS fighters, the Pentagon said Tuesday.

A militant attack in Kabul, Afghanistan killed at least 28 people and wounded more than 300 others. The Taliban claimed responsibility for the attack, which came one week after the militants announced the launch of its spring offensive.

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One in every five "suicide bombers" used by Boko Haram in the past two years has been a child, underscoring the heartless nature of the religious extremist group, according to a report released Tuesday by the United Nations Children's Fund, writes Al Jazeera.

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While Republican presidential front-runner Donald Trump has made a big deal out of blocking Syrian refugees from entering the United States out of fear of terrorism, the truth is that right-wing extremists are a much greater threat than terrorists linked to ISIS or similar organizations.

A 20-year-old former cheerleader student at Mississippi State University pleaded guilty Tuesday to one charge of federal terrorism after she and her fiance were arrested last year en route to Istanbul, Turkey in a plot to join ISIS, according to CBS News.

One of the European passengers held hostage by the EgyptAir hijacker decided to take a photo with the criminal.

Two female suicide bombers killed 22 worshipers at a Northeast Nigerian mosque. They injured 18 others during morning prayers.