The Family Smoking Prevention and Tobacco Control Act of October, 2009, gave the Food and Drug Administration (FDA) power to regulate smokeless tobacco products.

FORBES: No Time To Own Amazon, Autozone Or Marlboros

Jean King, director of tobacco control at Cancer Research UK, said the research was further proof of the need to tackle smoking, particularly among the young.

BBC: Cost of cancer in the UK 'over ?15bn' a year

The new tobacco control action plan is part of the overall aim to cut smoking in Wales from a quarter of the population, its current level, to 16% by 2020.

BBC: A playground

In 1992 he became Russia's prime minister, and control of Gazprom was assumed by his deputy, Rem Vyakhirev, a chain-smoking Soviet-style bureaucrat, whose first name stood for Revolution, Engels, Marx.

FORBES: Energy Tsar

The countries that conferred in South Africa were all parties to the WHO's Framework Convention on Tobacco Control, the so-called global tobacco treaty, which commits signatories to stop the promotion of smoking through advertising, and also to protect health policies from interference by the tobacco industry.

ECONOMIST: Smoking, governments and health

According to the US Centers for Disease Control and Prevention, consumption of smoked tobacco products fell 27 per cent from 2000 to 2011, as taxes increased and smoking bans at bars and restaurants took hold.

CNN: Sales of e-cigarettes continue to soar