Al Qaeda Videos
Army Vet Recalls Last Time He Saw Twin Kids Over 40 Years Ago: Part 1
Allen Thomas was serving in South Korea when he had twins, a boy and a girl, with a woman he called "Connie."
Search continues for Manchester bomber's possible ISIS connections
Authorities believe Salman Abedi travelled to Libya since dropping out of college.
Security implications of deadly Manchester blast
ABC News' Martha Raddatz and counterterrorism expert Matt Olsen discuss the global reaction to the attack that killed 22 people at an Ariana Grande concert in Manchester, England.
ISIS supporters celebrate Manchester attack on concertgoers
It is still unclear who might be responsible for latest attack on so-called "soft target."
US cities increase security after Manchester attack
U.S. Homeland Security officials said Americans can expect to see "increased security" in public places after a deadly attack killed 22 concertgoers in the U.K.
President Trump delivers remarks at Arab Islamic American Summit
The president in the speech called on Muslim leaders to unite with other countries in fighting terrorism.
June 21, 2013: President Obama announces new FBI director
President Obama praises the outgoing Bob Mueller and the incoming Jim Comey.
SPECIAL REPORT: Gen. McMaster says what Trump shared was 'wholly appropriate'
When pressed by ABC News' Jonathan Karl, McMaster would not say if Trump had disclosed classified information.
Explaining the war in Syria
ABC News' Amna Nawaz explains how the war in Syria came to be, and why there's still no end in sight.
Pres. Donald Trump Marks 100 Days with rally in Harrisburg, Pennsylvania
The president marked his first 100 days with an event in the New Holland Arena.