Diamonds may be a girl’s best friend, but many shoppers these days are conscious about how their carats were mined and vote with their feet against so-called blood diamonds that were mined at conflict zones in Africa. Should Olympic athletes too be aware of where the metal for their medal comes from, and should they insist on getting awarded with copper as well as gold and silver that were mined sustainably at the London games?
See http://copperinvestingnews.com/11705/are-olympic-medals-made-from-conflict-copper-rio-tinto-gold-silver/.