LONDON - Britain must be more vigilant than ever about security threats following the killing of al Qaida leader Osama bin Laden, Prime Minister David Cameron said on Tuesday.
Britain will keep its terrorist threat level -- currently at severe -- under review, he said.
"While bin Laden is gone, the threat of al Qaida remains. Clearly there is a risk that al Qaida and its affiliates in places like Yemen and the Maghreb will want to demonstrate they are able to operate effectively," Cameron told parliament.
"And, of course, there is always the risk of a radicalized individual acting alone, a so-called lone-wolf attack. So we must be more vigilant than ever - and we must maintain that vigilance for some time to come," he said.