The cost of rice, one of the world's most basic foods, is rising fast and with it, discontent. <br /><br />The World Bank has warned that 33 countries face potential social unrest because of spiralling food prices.<br /><br />In terms of rice, the sky-rocketing cost comes despite record harvests. <br /><br />As Paul Allen reports, farmers in Thailand are now going to extreme measures to protect their crops.
