The current food crisis cannot be blamed on third world governments, as was the case in most earlier famines. This crisis in caused by a sudden spike in the price of rice, grain and other staples. See also this article: http://www.economist.com/opinion/displaystory.cfm?story_id=1...

Moving from growing food to growing biofuels is necessarily going to influence the price of food - basically the prices of oil and of food staples are going to move in tandem. And we should be very careful before we commit one fifth of arable land to biofuels.

Ultimately this food crisis is caused by poverty, and there's no easy cure for that.