Via Michael Tobis, a Financial Times story about growing export restrictions in response to global food shortages:

On Monday, India scrapped tariffs on edible oil and maize and banned exports of all rice except the high-value basmati variety, while Vietnam, the world’s third biggest rice exporter, said it would cut rice exports by 11 per cent this year.

The moves mark a rapid shift away from protecting farmers, who are generally the beneficiaries of food import tariffs, towards cushioning consumers from food shortages and rising prices.