Terry Duffy, Olivier de Schutter

People all over the world are finding it hard to buy basic food stuffs due to high global food prices. Many have taken to the streets demanding action from their governments. The World Banks says high food prices threaten social stability. HARDtalk's Zeinab Badawi asks Terry Duffy, the head of the world's largest derivatives exchange, and Olivier de Schutter, UN special rapporteur on the Right to Food, what is fuelling the increases and how much blame can be attributed to speculators.