London Underground Workers Participate In The first Of Two 48-Hour Strikes [Getty Images]

LONDON, ENGLAND - FEBRUARY 05: Commuters wait for taxis outside Waterloo station on February 5, 2014, in London, England. Today marks the first full day of a 48 hour strike by London underground workers. Workers on London's Underground train system began strike action at 9:00 pm on Tuesday, 04, causing chaos for commuters arriving for work this morning. (Photo by Dan Kitwood/Getty Images)

Getty Images News Dan Kitwood