Dina Temple-Raston

Sheik Abdullah bin Bayyah is considered one of the most influential Muslims in the world. As a respected scholar, he has issued edicts to explain why groups such as the Islamic State have it wrong.

One terrorist group targeted inside Syria was a little known al-Qaida offshoot called the Khorasan Group. It was created by al-Qaida leader Ayman al-Zawahiri to take advantage of the crisis in Syria.

One of the targets in overnight airstrikes in Syria was a little known al-Qaida offshoot called the Khorasan group.

While the al-Qaida offshoot known as the Khorasan Group only burst into the public consciousness in the past week, the group has been on the radar of counterterrorism officials for a while, and intelligence officials say they have tracked the individual members of the group for years.

Its members are ...

Experts say the well-funded militant group is focused on gaining power in the Middle East, not attacking America. The bigger risk is of an opportunistic attack, locally or in Europe.

Yemeni-American Ahmed al-Moflihi likely fought alongside a rebel group with ties to the U.S.-backed Free Syrian Army. But officials are investigating anyway: Fight in Syria, and you raise a red flag.

Dozens of Americans have gone to Syria to fight against the government, some with groups the U.S. considers terrorists. U.S. officials have to sort out which could be dangerous when they return.

Earlier in the summer, a U.S. raid failed to rescue American hostages in Syria, including journalist James Foley, who was executed in a video released this week by Islamist militants....

Two U.S. missionaries who caught the Ebola virus in Liberia have been discharged from an Atlanta hospital after fully recovering. They were the first known Ebola patients flown to the...

Experts say the videotaped killing of journalist James Foley is part of a broader propaganda strategy by Islamist militants. The group, the Islamic State, has become a master of the video medium.

Times Square performers, who often don characters' costumes, have been a New York City staple for years, exchanging photos for tips. Lately, though, city officials have said tipping t...

The group known as the Islamic State has fired its first violent salvo against the U.S. The group declared that the beheading is a retaliation for U.S. airstrikes in Iraq.

As the EPA develops new carbon emission rules for existing power plants, the agency is holding a series of public hearings around the country where coal industry advocates made their concerns known.

For months, U.S. officials have said secret data from former NSA contractor Edward Snowden was affecting the way terrorists communicate. A Massachusetts company says it has found proof.

The U.S. says that evidence suggests the missile that brought down Malaysia Airlines flight MH17 was fired from separatist-held territory in eastern Ukraine. NPR's Dina Temple-Raston reports what is now known about the crash.

In combating militants, one weapon is cutting off the groups' funding from charities or outside donors. But the "Islamic State" gets its money from other means and may be immune to U.S. techniques.

On the first night of Ramadan, the Islamic State of Iraq and Syria announced it would change its name to, simply, the Islamic State, declaring that the land it had captured in Syria a...

This week ISIS changed its name to the Islamic State and says its territory is now a caliphate. The move is just one of the things that distinguishes the group from its predecessor, al Qaida in Iraq.

This week a young man in Texas became the first American to plead guilty to terrorism charges related to the recent fighting in Iraq.

Michael Wolfe, 23, was arrested just before he boarded a plane. He was on his way to join ISIS, the Islamic State of Iraq and Syria, ...

Thousands of foreign fighters are joining the fighting in Iraq and Syria. According to U.S. intelligence officials, the flow of foreign fighters includes a hefty contingent from the W...