If Wheat was the problem, the US would be dropping food bags on the populace instead of TONS OF WEAPONS. GUNS DO NOT GROW OR WATER CROPS YOU FUCKING MORON!
Let me get this straight. Your argument is that the crisis must not be driven by a non-political cause because if it were the US would have solved it? Or, to put it another way, your're arguing that the US government is so perfectly effective at always addressing the root causes of problems in a timely manner, that the government's failure to address this one means it's not the root cause?
Dude, you must know a different US government than I do. The one I know occasionally does the right thing at the right time, but it's mostly by accident.