大象传媒

Most of us have embedded the internet and smart technology in our lives. We might like to believe we are autonomous digital citizens, but what if our behaviour is now being monitored, and modified by private and state actors over which we have no control? How alarmed should we be? HARDtalk's 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 every one of us dangerously exposed?