And in the event of a major flood, the MTA will deploy heavy duty pumping trains to remove water trapped in the tunnels beneath the rivers.

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The effort, called a "top kill, " involved plugging the ruptured deep-sea well by pumping heavy drilling fluid into it from the surface, nearly a mile above.

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The 20-year-old from Queensland said she had listened to music to calm her nerves before the race -- not the pumping heavy rock favoured by many athletes but country and western.

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