How is TfL targeting public transport 'headphone dodgers'?

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Transport for London (TfL) is to target the "disruptive behaviour" of passengers who play music and make calls using mobile phone loudspeakers. TfL said most bus and Tube travellers considered such behaviour "a nuisance" and that some even found the additional noise very stressful. Posters urging passengers to use headphones or hands-free kits with their device will appear from the autumn. So will it work? And what do people make of the idea? For London Latest, BBC Radio London's Ross Ryan has more. (Image credit: Getty Images)