Meeting Ayman Zawahiri’s family in Egypt, I gained some special insights into the now-assassinated Al Qaeda leader.

Ayman Zawahiri,  successor to the slain Osama Bin Laden, warned the world in an Internet message soon after he became leader, that Al Qaeda would remain a ‘source of horror and a nightmare chasing America, Israel and their allies’.  That, of course, included Britain.  It was a message that intelligence communities took very seriously.  The evidence from his own life story shows that as a rule he  delivered what he promised.  

Paul Martin discussed Zawahiri, after his death, for the BBC:  https://www.bbc.co.uk/programmes/m0019z9b starting at 5 minutes 30 seconds.