Terrorists involved in each of the three recent Islamist assaults on Britain were known to authorities prior to the attacks that claimed a combined 34 lives, but in each instance British authorities failed to act in time to stop the fiendish plots. British officials have acknowledged Westminster Bridge attacker Khalid Masood, Manchester bomber Salman Abedi and London Bridge terrorist Khuram Butt were on police radars for links to Islamic extremism. Despite his extremist associations and activities, however, British police said he was not viewed as a serious threat before the London Bridge massacre. Masood had a variety of criminal convictions prior to his own van and knife attack on a British bridge in March; however, he hadn’t been convicted on any terror charges. In light of the news, MI5 was conducting its second review into how it missed the threat posed by Abedi.

Source: Fox News June 06, 2017 14:34 UTC