Lord Mark Malloch-Brown, Former UN Deputy Secretary-General

The results of the Arab uprisings are uncertain and the balance of power in the Middle East unpredictable. A moment of crisis not just for people in the region but for international institutions struggling to confront unprecedented challenges. Lord Mark Malloch-Brown describes himself as a democratic mercenary. He was at the top of the World Bank, the United Nations and Britain's Labour government. HARDtalk's Carrie Gracie asks him how to prevent disillusionment after the dust of revolution has settled.