'Eye for an eye ' Adebolajo and Adebowale , both in their 20s , were convicted of murder in December of last year . Lee Rigby 's brother says committee is trying to justify new spying legislation . Internet firms must live up to duty to prevent terrorism , UK PM Lee Rigby 's says . Report : Afghanistan intelligence , security agencies could not have stopped Michael Adebolajo 's slaying . But committee chairman slams online company for not flagging seven exchange .
Lee Rigby 's brother says committee is trying to justify new spying legislation . Internet firms must live up to duty to prevent terrorism , UK PM Lee Rigby 's says . Report : Afghanistan intelligence , security agencies could not have stopped Michael Adebolajo 's slaying . But committee chairman slams online company for not flagging seven exchange .