You also indicated that because of his statements about how to end starvation in third world countries you also wondered if he had an agenda (presumably a political agenda from comments you've made) and also you are beginning to doubt the science behind Dr. McDougall's views.
I don't doubt the science behind his nutritional guidelines, only some of his views for implementing them (someone else earlier in this thread stated they would like to see the science behind the sexual abuse/early puberty link claim-- and actually, so would I). But if you want to focus on the Egypt article only, I think his Egypt article is based on an entirely flawed premise where McDougall stated the uprising was caused by food shortages caused by the have's (i.e. presumably the wealthy American meat-eaters). Who do you think he meant by gluttons? Americans, of course, because we're the ones eating the "rich food." But that uprising was caused by radicals wanting power and had nothing to do with food. The uprising there is not a pro-vegetarian movement, by the way! I find it really strange how McDougall managed to twist his health message around this political uprising.
I've read Diet For A Small Planet and understand the premise behind the cost of raising meat for food (anyone with a brain stem can see it takes an enormous amount of grain/water to raise meat animals, not making for an effective or even healthy rate of return when all is said and done; plus the waste management is often not handled well, either, and often leads to pollution and spread of disease). But I really don't see how the "gluttons" (McDougall's term) are taking food out of the mouths of the poor, just the same. Even if the entire world went vegan, the poor still wouldn't be able to afford their rice and beans. The money doesn't magically transfer over into the hands of the poor from the "gluttons" (even if those gluttons give up meat), no matter what is legislated or taxed. The government collects the taxes and spends it on bureaucracy. Very little of it makes it to the poor. When you're talking about transfer of wealth, you are talking Marxism. Again, Egypt is not about veganism or even vegetarianism!