“The British security services will not be able to prevent terrorism unless they monitor the internet traffic of innocent people, the former head of MI6 has said.
Sir John Sawers, the chief of the Secret Intelligence Service until November last year, warned a successful terrorist attack on the UK by Islamic militants is all but inevitable as he said there cannot be ‘no-go areas’ on the internet.”
(Source: Ex-MI6 chief Sir John Sawers: We cannot stop terrorism unless we spy on innocent people – Telegraph