The 3rd World has lots of problems - overpopulation among them.
Birth control programs just aren't going to work for those people. Food relief efforts do nothing to solve the real problems, actually making it worse in the long run if the underlying causes of the famine are not addressed. I'd like to see the corrupt elites of all those countries in the UN (like those involved in the oil for food scheme) actually decide to do something like build a dam and aqueduct system in one of these countries.
Of course, then the environmentalists will scream about lost habitat for the endangered pfiffer pfeffer pfeff and the zizzer zazzer zuzz.
I think we'll eventually see some sort of nasty, nasty epidemic bring the worlds population down, especially in those poor undeveloped countries.