I don't understand the saturated fat hate. Cultures have existed that have gotten 50% or higher of their total calories from nearly pure animal fat sources. Eskimos (or is the politically correct term Inuit or something else now?) lived on blubber, and only started experiencing the whole heart disease/obesity epidemic when switched to a more "conventional" grain-heavy diet.

I wouldn't trust the USDA to tell me what to eat as far as I can throw them and all of their agriculture lobbyists. RDA's are a joke.