social unrest we're on cricinfo. this is genuine it's what i call silence tsunami. hitting in one place this is something that knows no borders. on the role of the receiver meeting of the heads of u.n. agencies turned into a crisis summit as the world notes the cost of. many cases has come to me like any traditional asian country from hunger pains me. because he's central plateau and vegetables trying to become. a lot of. things like that. killed dozens others injured and arrested lots lots of rising food prices. the song rest for they took one song beats him severely breaking both his legs my son cold war cool speak now my son is dying thank. you. thank you. thank you. thank you. global warming and biofuels have been accused of causing the food shortages that led to a dramatic increase in prices. unpredictable droughts have destroyed rice and wheat crops while a big part of the u.s. corn harvest is turned into fuel for cars and not for people. a classic theory of supply and demand offers a limited explanation as to why over the course of two years the prices of ric