Cameron calls crisis meeting, police to step up security

Prime Minister David Cameron convened a meeting of his government's emergency response committee to discuss the attacks in Paris which left over 120 people dead, as UK police prepared to step up security. Britain's terrorism threat level stands at "severe", the second highest category which means a militant attack is considered highly likely. Cameron will chair the meeting of the committee, known as Cobra, later on Saturday in London, where at the French embassy, the flag had been lowered to fly