Thursday’s attack in Barcelona - and possibly today’s attack in Finland - are yet more tragic examples of how common objects such as vehicles and knives can be used as weapons by terrorists to generate an overarching sense of fear and inflict mass casualties. Western authorities and intelligence agencies have ...

Spanish authorities said Friday the deadly attacks in Barcelona and a seaside town are linked and long-planned by a terrorist cell. While several people have been arrested in connection with the attacks, the driver who plowed through pedestrians on Las Ramblas is still at large and police are searching for other suspects. ...