We're quitting smoking, so why is big tobacco booming? - video

Smoking rates are falling in the UK, US and much of Europe. Forty-five per cent of Brits smoked in the 60s and 70s, compared with just 15% today.You would think this was bad news for cigarette profits, but tobacco companies are making more money than ever. They claim they no longer market traditional cigarettes, but behind-the scenes tactics suggest otherwise. Leah Green explains how the most successful business enterprise in history has weathered its fall from grace