Salt of the earth
The CBS news included more basic stuff than SuperBowl fluff. CBS Nightly News on Feb. 7 noted 18 million tons of salt are used in the US per year. CBS focussed on a Cargill mine under Lake Erie, which salt deposit formed 400 million years ago. Cleveland mine produces 3 million tons per year.
Also:
http://today.msnbc.msn.com/id/41452174/ns/today-entertainment/
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