Radical Islam

Militants kidnapped the professors in Kabul in an August raid.

Without the oxygen of publicity, the attacker is just that: a killer with a car and a knife. The lone wolf needs the pack as much as the pack needs the lone wolf.

Swedish authorities are receiving triple the counterterror tips they did in 2012.

Finland has become more concerned after attacks in neighboring Sweden and Russia.

"You and your agents are the source of instability in the Middle East," Ayatollah Khamenei tells the United States.

Radical Islam must be recognized and destroyed across the West, writes Chief Rabbi Goldschmidt.

Five masked fighters promise more jihad in Iran after Tehran attack and tell the Saudi government its "time will come."

The attacks in the Iranian capital striking the country's parliament and a shrine killed 17 people.

The group said it kidnapped the two teachers in Pakistan's Baluchistan province last month.

The jihadi was notorious at home for gruesome execution videos.

The Islamic State militant group claimed responsibility for twin attacks in the Iranian capital that killed 13 people.

The man attacked a police officer with a hammer before French police shot and injured him.

The group said two of its fighters carried out the attacks, which killed seven people.

The attacks in the Iranian capital left at least seven dead, according to local reports.

The video features Emirati star Hussain al-Jassmi and has more than 2 million YouTube views.

His death comes days after the group's call for "all out war" in the holy month.

Across the Arab world, changing demographics, a lack of basic rights and Western interventions all drive young people toward extreme violence.

Suicide bomber Abedi was one of 20,000 people known to MI5 but not one of the 3,000 people under active investigation.

As more information emerges about the Manchester plot, the bomber's web grows wider.

Manchester police say the forces were "responding to a call" at the scene.

The New York Times posted leaked images of the remnants the suicide bomber's device on Thursday.

Ramadan Abedi denies his son's involvement in the attack on Manchester Arena.

Up to 5,000 soldiers will be tasked with protecting sensitive sites across Britain after the bomb blast.

The 37-year-old was due to board a flight for Turkey Tuesday evening.

Top spies say European security services are more disciplined than their U.S. counterparts.

Viktor Ozerov, chairman of Russia's defense committee, says Britain is at fault for not working with Moscow.

The Queen condemns "act of barbarity" in the northern English city.

The suicide bombing killed 22 people, including children, on Monday night.

Israel, the U.S. and Arab states must come together, writes Israel's Public Security Minister Gilad Erdan.

Trump's previous speeches on radical Islam, made largely during his presidential election campaign, have centered on threats posed to the U.S.