<p>Host, Elisabeth Braw, speaks with Professor Sir David Omand, former director of the UK's GCHQ, about cyber-espionage: how governments can defend against it, how should they retaliate, and how our adopting a spy mindset can help make the world safer.  </p>

Major General (ret) Ed Wilson talks attribution and cyber warfare : how governments deter attacks and punish our enemies

Elisabeth Braw, scholar at the American Enterprise Institute, presents 'On the Cusp' which focuses on how governments, business and civil society can work together to strengthen countries' defence against existing and emerging threats. Each episode she interviews a guest who is a leader in their respective field.