How Some Passengers on Frontier Flight With Box Cutter-Armed Man Prevented Any Violence From Being Carried Out

What We Know About US's Mission to Take Out Ayman Al-Zawahiri

Terrorist Gunman Killed by Israeli Security Forces After 9-Hour Manhunt 

How to Identify 'Incel' Behavior Before It Escalates Into Mass Violence, According to the Secret Service

How an Unlikely Source Took Down the Mad Bomber Who Terrorized New York City for Nearly 17 Years

Kansas Mom and Former Teacher Is Allegedly a Radicalized ISIS Soldier: Prosecutors

Domestic Terrorists Eye US Power Grid as Possible Target of Attack, Officials Warn

What Led Up to British Gunman Taking Rabbi and 3 Worshippers Hostage at Texas Synagogue

Kampala Terror Attack Casualties Climbs to 7 After More Succumbed to Injuries Sustained From Blast