A public distribution system or PDS in India can be used as a pet project to remove scarcity of food grains almost all around the world. Here is a glimpse of the trade that can happen in the new deals in WTO for a change. Stockpiling for unnecessary reasons is not an agenda, but the distribution is. Procurement, stockpiling and distribution can lead to lesser food scarcity. A report to use and scrutinize.
PS: The numbers used are figurative. Basing deals only on the currency factor is not advisable. Procurement can be done based on transportation and freight charges.