Cameron: Britain in terrorists' sights

Posted: August 30, 2014 at 3:06 a.m.

British Prime Minister David Cameron arrives to deliver a press conference in Downing Street, London, Friday Aug. 29, 2014. The Home Secretary Theresa May has announced that UK's terror threat level is being raised from "substantial" to "severe". Britain raised the country's terror threat level from substantial to severe Friday, meaning that a terrorist attack is considered highly likely.(AP Photo/Facundo Arrizabalaga, Pool)

LONDON -- Prime Minister David Cameron pledged Friday to plug gaps in Britain's armory to combat terrorism, describing the extremist threat posed by the Islamic State group as being more dangerous than even that of al-Qaida.

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