Here’s a link to a ‘Despatches’ programme shown on UK TV, Channel 4, 8pm Mon 10 June 2013, and available on their OnDemand facility for another 27 days:

‘Diets, Drugs and Diabetes’ (Duration- 26:52minutes)

http://www.channel4.com/programmes/dispatches/4od#3532942

‘Dr Deborah Cohen, investigations editor at the British Medical Journal, examines a new generation of diabetes drugs that some drug companies hope could also be a magic treatment for obesity. Millions of prescriptions of it are given out every year, but are they also associated with an increased risk of cancer?’ (Programme blurb from Ch4’s OnDemand website.)