There's a race taking place within British American Tobacco's business, and it will determine the future of the stock and the dividend. When you buy any stock, you need to think about the future. But that's especially true for British American Tobacco (BTI 0.10%), which is one of the world's largest cigarette makers. Here's a look at what's happening to its core business (which is not good news) and what it is doing with the rest of its portfolio (which is showing signs of promise). The next five years coul ...