Sources

Anthony De Rosa: RT @counterparties: Why salt water is a so dangerous in a subway n http://t.co/ODwYoYFb

felix salmon: RT @nicknotned: Salt water is a subway's worst enemy. http://t.co/PnJxtpAH

Nick Denton: Salt water is a subway's worst enemy. http://t.co/8zWr6EoH

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