In an interactive session at the Peace Corps 2008 Country Directors Conference, Rice said the ongoing food crisis was mainly due to "four causes", even as she specifically pointed out the exchange rate and the simple "inability" of getting food to the people.

"There are, kind of, four causes that we really have to look at. We’ve got to understand better what is happening in some conflict areas in terms of the distribution of food. Its obvious that there are places like Sudan, where we’ve had a sudden uptick in the inability to distribute food," Rice said.

The top Bush administration official said: "We obviously have to look at places where production seems to be declining and declining to the point that people are actually putting export caps on the amount of food.

"Now, some of that is not so much declining production as apparently improvement in the diets of people, for instance, in China and India, and then pressures to keep food inside the country. So, that’s another element that we have to look at," she said.

The "incredible cost" that fuel prices, everything from fertilizer to transportation costs, was bringing on the ability to distribute or to get food to people, was identified as another factor by Rice.