Junk food companies say they're trying to do good. A new book raises doubts

As soda consumption has dropped in the West, companies are making an effort to woo new customers in other places. This Coke bottle ad is in Mozambique. (Thomas Trutschel/Photothek via Getty Images)

So how do you get people to drink more soda?

That's a question Coca-Cola and other soda makers are wrestling with as soda drinking has waned in U.S. and European markets.