Brothers behind string of recent terror attacks
From Boston to Brussels, siblings have played an out-sized role in Islamic extremist-inspired violence in recent years
Terror in Europe
After Brussels, Americans may rethink travel plans
Increased affordability amid lower fares probably won't overcome deepening worries about safety in Europe
Brussels attacks: What we know
Suspected bombmaker in Paris attacks was one of two suicide bombers at Brussels airport, officials say; explosives used in attacks examined
2nd suspected bomber eyed in Brussels subway attack
French, Belgian media say security camera caught another man with large bag walking with suicide bomber Khalid El Bakraoui
Paris bombmaker ID'd as Brussels airport suicide bomber
DNA links Najim Laachraoui to Brussels bombing and explosives used by suicide bombers in deadly Paris attacks
Journalist captures iconic photos of Brussels airport bombings
Moments after the explosions, Ketevan Kardava was in shock -- but captured some now-famous photos with her iPhone
New device could detect explosive favored by terrorists
American researchers have developed a device that could detect even trace amounts of explosive TATP, which was found in the apartment of two Brussels attackers
Pressure from Belgian police may have rushed terrorists to act
An apartment in a quiet Brussels suburb may have been an important clue as what was to come -- but the clue came too late
Several Americans missing after Brussels attacks
Brother, sister who had been living in N.Y. reportedly among those from U.S. unaccounted for after attacks
Suspected ISIS bomb-maker still on the run
At least 1 suspect in deadly Brussels attacks got away, and it could have been Europe's most-wanted man
AP: ISIS has trained 400 fighters for European bloodshed
Interlocking terror cells like the ones involved in Paris and Brussels attacks have orders to do as they wish for maximum carnage, AP claims to have learned
Missionary from Utah hurt in Brussels attacks in coma
Richard Norby among approximately a dozen U.S. citizens injured in Belgium terror attack
Who are the Bakraoui brothers, blamed for Brussels attacks?
While the Belgium-born siblings had been known, small-time thugs, their sudden involvement in extremist terrorism was a surprise
Brussels attacks shed light on vulnerable U.S. airport "soft targets"
Explosions near check-in desks at Brussels airport spark debate over how to better protect these often-crowded spaces
Brussels attacks: Photo, wanted notice released for suspect
ISIS claims it carried out deadly bombings at airport and subway station, says "what's yet to come is worse"
After Brussels, officials call for better intel sharing across Europe
With six terrorist attacks on European soil since the beginning of last year, there's never been such pressure to get it right
Morell: ISIS pulling off operations "al Qaeda never dreamed of"
Michael Morell, former number-two at the CIA, says ISIS is getting more sophisticated, calling them "pros" trained by experts in Iraq and Syria
U.S. law enforcement on alert for Brussels copy cat attacks
Homeland Security sent a bulletin to law enforcement agencies across the country warning of the potential threats from ISIS following the Brussels attacks
"Blood everywhere": Survivors describe Brussels carnage
Witnesses describe harrowing scene as deadly explosions rock Brussels airport and subway system
Brussels attacks "accelerated" by Paris suspect's arrest?
Security analysts Michael Morell and Juan Zarate say bombings likely directly linked to capture of Salah Abdeslam last week
American cities on alert after Brussels attacks
Police will be visible and busy across the nation's urban centers after terrorists strike the heart of a European capital
Hashtags offer help in wake of Brussels attacks
Throughout the country people are tweeting offers of shelter and rides
Brussels attacks: Tributes and solidarity
People around the world pay tribute to the victims
Facebook activates Safety Check after Brussels attacks
The feature has been used by millions of people in recent years to let family and friends check on each other after a crisis
A history of recent extremist attacks in Europe
Dozens have been killed in Brussels bombings, less than six months after the deadly Paris attacks, in a sign of Europe's increasing instability
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