Michael Adebolajo 's brother says committee is trying to justify new spying legislation . But the UK security and intelligence agencies also have lessons to learn , he said . The government has said it will introduce a bill next week that would allow the police and security services to monitor communications without warrants if they are deemed necessary for national security. Report : UK intelligence , security agencies could not have stopped Lee Rigby 's slaying . But committee chairman slams online company for not flagging one exchange .
Michael Adebolajo 's brother says committee is trying to justify new spying legislation . The government has said it will introduce a bill next week that would allow the police and security services to monitor communications without warrants if they are deemed necessary for national security. Report : UK intelligence , security agencies could not have stopped Lee Rigby 's slaying . But committee chairman slams online company for not flagging one exchange .