First broadcast: on BBC NewsLatest broadcast: on BBC News
Stephen Sackur speaks to Michael Chertoff, director of homeland security in the Bush administration and a leading thinker on cyber security. Has the internet left us exposed? Show more
First broadcast: on BBC News EuropeLatest broadcast: on BBC News North America
Stephen Sackur speaks to Michael Chertoff, former US Secretary of Homeland Security and a leading thinker on cyber security. Has the internet left all of us dangerously exposed? Show more