Analyst: ISIS "looking for opportunities to strike back"
Fran Townsend, former Homeland Security adviser to President George W. Bush, says security can't be everywhere all the time
Terror in Europe
"We're always going to be vulnerable" to car attacks: expert
Former assistant director of FBI Ron Hosko says "it's almost impossible in an urban setting" to protect sidewalks from cars
Pence offers condolences to Spain
"This is a tragic day. And the latest scenes of carnage and mayhem sicken us all," Vice President Pence said
Barcelona terror attack
A popular tourist district is the scene of an attack in Barcelona, Spain
U.S. victim of Bastille Day attack looks back a year later
Greg Krentzman was visiting Nice, France, with his wife and daughter when a terrorist plowed through a crowd in a truck
Ariana Grande pays tribute to youngest Manchester victim
Grande wished the late victim a happy birthday
Police: People linked to Manchester bombing could still be at large
Suicide bomber wasn't part of large network, top counterterror cop says, but more arrests still possible
"Nationalist" accused of plot to attack French leader, minorities
Authorities say man facing terror charges after tip from online gaming community that he was trying to buy a gun
Police claim bust-up of ISIS cell based on Spanish island
Spanish officials say 6 suspects arrested in 3 countries, including an extremist imam who proved hard to pin down
Police confirm man killed in attack at London mosques
51-year-old man died of "multiple injuries" after a van plowed into him and other worshippers near 2 mosques in Finsbury Park, north London
Raids, arrests after failed nail bomb attempt in Brussels
Belgian police say 4 people held in connection to the attack at a busy train station in the country's capital
Brussels train station attack "could have been a lot worse"
Officials say Moroccan man shot by police in Brussels "wanted to cause much more damage" with nail bomb
Suspect shot dead in Brussels train station "terror attack"
Federal prosecutor said soldiers "neutralized" suspect and added "this incident is considered as a terrorist attack"
New info on man accused of terror attack on London Muslims
Family of Welshman held in van attack says he was "troubled," but not racist, as attack highlights rise in anti-Muslim violence
Car carrying explosives rams police vehicle on famed avenue
France's anti-terrorism prosecutor opens investigation after fiery blast in Paris
Officials move to ease tensions after van attack on Muslims
Man plows large van into crowd of worshippers outside north London mosque
Security expert: London mosque attack could be used by ISIS
National security expert Fran Townsend says man who drove van into crowd outside Finsbury Park Mosque was using new weapon of choice
Muslims targeted in terror attack near London mosque
Officials and witnesses say 48-year-old white man drove van into crowd of Ramadan worshipers, shouted about wanting to "kill Muslims"
Man slams van into pedestrians near London mosque
Metropolitan Police confirm "a number of casualties," including 1 possible death, in suspected terrorist attack targeting Muslim worshipers
Cops release all Manchester concert bombing suspects
22 people arrested on suspicion of terrorism offenses have now been freed without charge, but investigation continues
Photos of London attackers' fake suicide belts released
London Bridge attackers wore fake bomb belts, made from plastic water bottles wrapped in duct tape, to create "maximum fear," police say
Notre Dame attacker radicalized on internet, prosecutor says
Hammer-wielding suspect charged with attempted murder in connection with a terrorist group and crime of terrorist conspiracy
Terror attack victims confronted assailant, ran to help
Londoners were enjoying a balmy Saturday night when attackers struck in a brutal van-and-knife attack
Dramatic video shows moment police shot London attackers
Saturday's attack was the third such deadly incident in England in just three months
Britain votes in a surprise election full of surprises
PM Theresa May called vote confident of boosting Parliamentary majority to negotiate Brexit, but a lot has changed in 2 months
World
Dual U.K.-Iranian national arrested over air base security incident
Ditch the dating app. Meet an Irish town's 83-year-old mystical matchmaker.
More details emerge about FlyDubai co-pilot who tried to crash plane
Pakistani airstrikes kill 10 civilians in Afghanistan, U.N. mission says
Investigation
U.S. surrogate for Chinese billionaire says she trusted agency, as questions arise
Whale sinks yacht in South Pacific, sailors rescued alive 18 hours later
Bolivia's attorney general arrested for alleged money laundering, drug trafficking
Netanyahu says it's too early to determine motive in cockpit stabbing
