From Duke University researchers comes this research data that will, no doubt, have the soda tax lobby wringing their hands. (emphasis is mine)

As some fans of sugary soft drinks have already heard, health policy makers and government officials are considering additional taxes on sweetened drinks.

And although a “soda tax” could generate billions of dollars in tax revenue each year, a new study finds it would have virtually no effect on America’s bulging waistline.

A fuller story is here.