Spain admits receiving Barcelona attack warning

Spain received a warning in May that the Islamic State group was planning an attack in Barcelona but decided it lacked credibility, Catalan regional authorities said Thursday.The daily El Periodico de Cataluna reported that the US National Counterterrorism Center (NCTC) had alerted Spanish intelligence officers to the threat weeks before a man ploughed his van into crowds of tourists along Barcelona's Las Ramblas boulevard on August 17, killing 14 people."Unsubstantiated information of unknown v