A senior al-Qaida leader was killed Friday in a U.S. airstrike, officials said.
ISIS says its members are responsible for a deadly suicide bombing on a Shiite mosque in southern Afghanistan.
The Supreme Court sounds ready to reinstate the death penalty for convicted Boston Marathon bomber Dzhokhar Tsarnaev.
The Taliban have ruled out cooperation with the U.S. to contain extremist groups in Afghanistan.
While nearly one-fifth of the country is too young to remember firsthand the day that forever altered the course of history, photos of the horrific event ensure the 9/11 is never forgotten.
Research compiled by the Pew Research Center shows that in the decades since 9/11, Americans’ outlooks on wars, politics and terrorism have dramatically shifted.
A Proud Boys leader who was sentenced in August for burning a D.C. church’s Black Lives Matter banner, along with a weapons conviction, surrendered to police this week.
France began the trial of 20 men accused in the Islamic State group’s 2015 attacks in Paris that left 130 people dead and hundreds injured.
Schoolteachers and administrators on Long Island are faced with the challenge of teaching an important piece of history that most of their students weren't even alive for — the Sept. 11, 2001, terrorist attacks.
Cutting-edge DNA technology will be used to analyze the remains of more than 1,100 victims of the Sept. 11 attack on the World Trade Center that have yet to be identified.
Homeland Security has issued a terrorism alert ahead of the 20th anniversary of 9/11.
Crew members aboard Delta flight 386 out of Los Angeles on Friday are credited for saving the aircraft from a man who allegedly tried to breach the cockpit and the FBI is now investigating.
The White House says it believes U.S. government agencies largely fended off the latest cyberespionage onslaught blamed on Russia intelligence operatives, saying the spear-phishing campaign should not further damage relations with Moscow ahead of next month’s planned presidential summit.
Many of the dead are between 11 and 15 years old, Afghan officials said.
Since 2015, Boston has marked the anniversary of the marathon bombing One Boston Day, which encourages residents to commit acts of kindness for each other.
The couple planned to travel to Yemen aboard a cargo ship in an attempt to stay away from law enforcement, according to a federal prosecutor.
Two attackers have blown themselves up outside a packed Roman Catholic cathedral during a Palm Sunday Mass on Indonesia’s Sulawesi island, wounding at least 20 people.
The Supreme Court announced Monday it will consider reinstating the death sentence for Boston Marathon bomber Dzhokhar Tsarnaev.
The student with the device had “moderate to severe injuries” while four more students had minor injuries, state police said.
Capitol Police have requested that members of the National Guard continue to provide security at the U.S. Capitol for another two months.