LONDON, ENGLAND - JUNE 11: Taxis blockade Whitehall on June 11, 2014 in London, England. London's licensed black taxi drivers are campaigning against the introduction of the 'Uber' taxi smartphone app in the United kingdom. Drivers say that there is a lack of regulation behind the new app. (Photo by Peter Macdiarmid/Getty Images)
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Getty Images News Peter Macdiarmid