interesting site that one..
http://www.silverdoctors.com/silver-smashed-to-33-50-on-asian-open/
"Combined with Friday’s raid which saw the cartel dump 62.5 million ounces or 2x the US annual mine production on the market in 15 minutes, the cartel has now dumped 2.5 years worth of annual US silver mine production on the paper futures market in under 24 trading hours."
entirely sustainable.