British intelligence chief warns of ‘worsening threat’ from ISIS
In a rare public speech, MI5 Director General Ken McCallum also warned of a 'staggering rise' in attempts at assassination and other crimes on U.K. soil by Russia and Iran.
In a rare public speech, MI5 Director General Ken McCallum also warned of a 'staggering rise' in attempts at assassination and other crimes on U.K. soil by Russia and Iran.
