Untitled tragedy

Coltan is probably something you have never heard of, but it would change your daily life if it got taken away from you. It is a mineral used in many electronic devices, such as cell phones and laptops. Eighty percent of the world’s supply comes from Congo, although apparently you do not want to know how. If you do, Bill Hammack wrote a small column about it. (via the Project Gutenberg newsletter).

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