I salute Don Surber for saluting LATimes writer, Charlotte Allen: ?Keep your self-righteous fingers off my processed food.? ThreeSourcers should love it -- it has it all:1) A great picture of a burger!2) A blow for modernity and its foundation in affordable food. Allen:The most zealous of the spend-more crowd, however, are the food intellectuals who salivated, as it were, at a steep rise in the cost of groceries earlier this year, including such basics as milk and eggs. Some people might worry