A recent High Court ruling against the right to wild camp in Dartmoor National Park sparked the largest land protest in history – and campaigners say their fight is not over yet.
Filmmaker Laura Poitras discusses her new documentary which traces the remarkable life of the artist-activist and the impact of her battle against the US opioid crisis.
After building his reputation covering the US civil rights movement in the 1960s, the photographer went on to produce some of the most enduring images of the past century.
