Silver Thursday repeat coming? "the exchange rules regarding leverage were changed, when COMEX adopted "Silver Rule 7" placing heavy restrictions on the purchase of commodities on margin" "the price began to fall again, dropping over 50% in just four days" http://en.wikipedia.org/wiki/Silver_Thursday Deja Vu? CFTC has votes to pass position limits http://www.reuters.com/article/2011/10/11/us-financial-regulation-limits-cftc-idUSTRE79A6GV20111011