Kraft is being sued because the drink Caprisun is/was allegedly labeled "All Natural" despite that one of the main ingredients is high fructose corn syrup. Apparently, products containing HFCS are not legally entitled to carry the "all natural" label according to the complaint. That would certainly make sense.
This is BS. Almost all manufacturers (and probably the USDA) consider HFCS "All Natural" and label it as such. Some greedy lawyer(s) just went after Kraft because they've got the most cash to make them go away. I'm sure they'll fight it, though (if it doesn't get thrown out immediately).