Personally, I don't eat fast food. I don't even really consider it "food". You can talk about studies and anecdotal evidence all you want to argue against nutrition labeling, but in reality fast food companies are just worried that they'll lose business from better-informed consumers. It's a classic bottom-line defense. While I'm generally not fond of government restrictions on every facet of our lives, I'm of the opinion that if people aren't smart enough or willing to make intelligent, rational choices for themselves, then they need a little help in the decision-making process.

My question would be why these fast "food" companies are so afraid and resistant to listing this information. If they aren't doing anything wrong, why not be up front with the info?

I don't think you can consider "fast food" as "food" either; it is more like a combination of chemicals that is dressed up, dyed, shaped, broiled and made to look like a nutrient source.