TOKYO - MAY 17: Shinkansen bullet train at Tokyo railway station in May 17, 2012 Tokyo, Japan.Shinkansen is world's busiest high-speed railway operated by four Japan Railways companies.
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TOKYO - MAY 17: Shinkansen bullet train at Tokyo railway station in May 17, 2012 Tokyo, Japan.Shinkansen is world's busiest high-speed railway operated by four Japan Railways companies.