Buddhism places great importance in non-violence and overcoming anger. Yet in Burma – a country 90% Buddhist - a very vocal group of monks has no qualms expressing their violent political rhetoric aimed at the Rohingya Muslim minority. Indeed, in the past three years the country has been rocked by frequent outbursts of sectarian violence. The latest riots took place early July in the city of Mandalay. Our reporter Cyril Payen was there to observe some may consider a heresy: violent Buddhism.