Daniel Gomez (from left), Lister Sena and Ricardo Alvarez were laid off after working for years with Philip Morris in Uruguay. They are now inspectors enforcing the country's tough anti-smoking laws. Lourdes Garcia-Navarro/NPR hide caption

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Tobacco smokers are more likely than nonsmokers to die from infection, kidney disease and, maybe, breast cancer. iStockphoto hide caption

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An employee in a Sydney bookshop in 2012 adjusts packaged cigarettes, which have to be sold in identical olive-brown packets bearing the same typeface and largely covered with graphic health warnings. William West/AFP/Getty Images hide caption

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Vapor from an e-cigarette obscures the user's face in a London coffee bar. Dan Kitwood/Getty Images hide caption

itoggle caption Dan Kitwood/Getty Images

The headquarters of Reynolds American in downtown Winston-Salem, N.C.. Starting in January, workers there will no longer be allowed to smoke at their desks. Chris Keane/Reuters/Landov hide caption

itoggle caption Chris Keane/Reuters/Landov

Smoking has declined by about 4 percent annually in Uruguay since the country required graphic warnings on cigarette packages. Matilde Campodonico/AP hide caption

itoggle caption Matilde Campodonico/AP

Tobacco giant Reynolds American is buying Lorillard and acquiring Newport, a popular menthol cigarette. In a shrinking market, Newport is one of the few U.S. brands gaining market share. It is particularly popular among African-American smokers. Justin Sullivan/Getty Images hide caption

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Some employees say e-cigarettes increase their productivity and help them steer clear of tobacco. But health regulators are looking into possible risks to e-cig users — and to co-workers. iStockphoto hide caption

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