A defense volunteer stands on sacks of rice at a warehouse in Ayutthaya province, north of Bangkok, in this June 27, 2013 file photo. A populist programme to support prices has led to the Thai government paying farmers almost double prevailing prices in Cambodia and Myanmar. Farmers and traders in the neighbouring nations are trying to take advantage, sending their grain across the border to be sold into the Thai intervention scheme.CHAIWAT SUBPRASOM/Reuters