It's in Africa…that the battle for the hearts, minds and lungs of new smokers is being waged most aggressively — and Nigeria offers a telling look at how the fight is unfolding...Africa still enjoys the lowest smoking rates in the world, largely because most people just can't afford it…[In] recent years, industry players — principally…British American Tobacco,…Philip Morris International and…Imperial Tobacco — have been working hard to fill [the vacuum]... [Their] expansion increasingly happens through the single-stick model, and that's the traffic that causes the most worry. People who buy cigarettes by the stick are typically the poor, the uneducated or the young — all groups less likely to have learned of the perils of smoking. [also refers to International Tobacco, Sampoerna (now part of Philip Morris International)]