Do consumers of carbonated soft drinks really know how much sugar is in their regular fix? This five minute Newsnight clip is ideal for showing when teaching aspects of the economics of information failure. Will “getting the information in people’s hands” help them to adjust their lifestyles? What are the economic arguments for and against direct intervention in the market for carbonated drinks such as a tax on high sugar content products? What are the alternative options or should we simply let consumers make their own choices?