How social media is being used to target cancer patients with fake cures. Tamasin Ford hears from cancer bloggers dealing with a flood of 'snake oil' salespeople. A former naturopathic doctor Britt Marie Hermes gives the inside story. British chemist and Youtuber Miles Power and researcher Corey Basch from Willian Paterson University in New Jersey describe how social media algorithms are facilitating the scams. (Photo: Pills and capsules on a keyboard, Credit: Getty Images)