David Kilcullen - Author and Counter-insurgency Expert

Zeinab Badawi speaks to counter-insurgency expert, David Kilcullen, who has worked in just about every conflict zone across several continents, including in Somalia, Kenya and Syria. Many dozens have died in the Nairobi shopping mall siege raising questions both inside Kenya and elsewhere as to the nature of future terror attacks - who will carry them out, and where? Is the world in danger of underplaying the current terrorist threat?