Commuters use bicycles to get to work as they cross Waterloo Bridge in London, on April 29, 2014, as a planned 48 hour underground train strike came into effect late Monday night. Workers on London's Underground train system began a 48-hour strike at 9:00 pm (2000 GMT) on Monday, threatening chaos for commuters and hitting football supporters attending Arsenal's match with Newcastle. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)
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