Rigby killing 'was not preventable'

Intelligence agencies in the UK could not prevent the murder of soldier Lee Rigby despite his killers featuring in a total of seven error-filled operations before the attack, a British parliamentary watchdog has found.
In a long-awaited 192-page report, the Intelligence and Security Committee (ISC) said it did not consider any of the opportunities missed by MI5, MI6 or GCHQ in the run-up to Fusilier’s Rigby’s barbaric murder by Michael Adebolajo and Michael Adebowale significant enough to have affected the outcome.