Jonathan Evans also warned of a growing menace from Somalia and Yemen and said extremists could try to target the 2012 London Olympics, in a speech delivered late Thursday.
..."The fact that there are real plots uncovered on a fairly regular basis demonstrates that there is a persistent intent on the part of Al-Qaeda and its associates to attack the UK," Evans told an audience in London.
"The country continues to face a real threat from Al-Qaeda-related terrorism." While a couple of years ago around three-quarters of plots aimed at Britain were linked to Al-Qaeda in Pakistan, the figure has fallen to 50 percent now due in part to increased activity in Somalia and Yemen.
Evans added that while there would be a "major security operation" around the Olympics, security services should assume that some extremists will "see an opportunity to gain notoriety and inflict damage."
Image via WikipediaApart from Northern Ireland's IRA, he added:
