article_snippet: On Friday, Boris Johnson lashed out at Home Secretary Theresa May for watering down strict anti-terror powers which may have helped Emwazi escape the net and travel to Syria.
article_snippet: The London Mayor accused Boris Johnson Tory leadership rival of giving the 'benefit of the doubt' to terror suspects like Emzawi.
article_snippet: Boris Johnson comes amid the growing controversy over who is to blame for MI5's failure to stop 'known wolf' Emwazi leaving Britain for the front line in Syria in 2013.
article_snippet: Mayor of London Boris Johnson (pictured right) lashed out at Home Secretary Theresa May on Friday for 'watering down' strict anti-terror powers which may have helped Emwazi escape the net and travel to Syria .