Green is for NO! Snickers' nutrition labels

Nutrition information on packaged foods indicating, for instance, caloric content is legally enforced in the United States and also in Europe there are only a few exceptions (I don't know about regulations in other parts of the world, so please leave a comment if you do so). What has been an issue, however, and one that has been debated for a long time, is the exact form these labels should have. What information should be present? In which format should it be presented? Where should the information be? There are still a number of degrees of freedom pertaining to these choices. In the USA, food manufacturers decided themselves to put the labels on the front of the packages. Being in the States at the moment, one of these front-of-pack labels caught my attention. It is the attention-grabbing green label on the Snickers bars. And I have ambivalent thoughts about it...

Example of a US Snickers calories label (originally featured on John B. Mahaffie's Blog)