I guess you can explain what that has to do with the price of wheat in Egypt.
Misdirected capital forces increases in resources and commodities which leads to food prices increases along with a cycle of speculation (demand increases due solely to anticipation of more demand). Then at some point it all unravels, the prices overshoot and then drop. At the same time the unwind kicks in and dollars quickly rise in demand which forces further price increases on particular commodities (e.g. wheat) with large U.S. sources. A slower effect of the carry trade and unwind is the unavailability of capital for ordinary uses such as increasing food production by investing in equipment or even borrowing for seasonal planting.