welcome back to "newsnation." pepsi versus coke and sprite versus 7-up and those are a few of the on going battles for the war on soda supremacy, but a different kind of battle today for the companies who produce the sugary drinks and the department of health. the beverage association is mounting a lawsuit against companies claiming that their product can lead to obesity. earlier, new york health department was sued over ads like this one that said that you can drink yourself fat. we are going to show you a similar video, because this one could not feel good to watch. ♪ so, soda makers want to see