A recent London discussion of Christian-Muslim relations illustrated in an enlivening way the need for developing conversation and exchange to take place at a number of levels, says Dr Harry Hagopian. Intellectuals and theologians can set the tone on key issues, but Christians and Muslims alike have a responsibility in communal, political and inter-prersonal engagements to deal truthfully, to confront prejudices, to speak out against faith-based discrimination and to tackle the roots of extremism wherever they are found.