REVOLUTION: Are all radical upheavals in the social, economic and political order destined to fail? Laurie Taylor talks to Daniel Chirot, Herbert J. Ellison Professor of Russian and Eurasian Studies at the University of Washington, about his study into why so many of the iconic revolutions of modern times have ended in bloody tragedies. Does radical idealism inevitably have tragic consequences? Also, the Rojava Revolution, how a region in Northwestern Syria, has become the site of extraordinary transformation. The writer and activist, Rahila Gupta, describes an experiment in direct democracy, inter-ethnic co-operation and women's liberation which has taken place against a backdrop of civil war. Producer: Jayne Egerton