nada que ver con las últimas noticias? (son de hace unos minutos, justo cuando empezó la bajada)
"China central bank warns banks against use of bitcoin"
http://finance.yahoo.com/news/china-central-bank-warns-banks-081701838.html
"China’s PBOC Bans Financial Companies From Bitcoin Transactions"
http://www.bloomberg.com/news/2013-12-05/china-s-pboc-bans-financial-companies-from-bitcoin-transactions.html
"China central bank warns banks against use of bitcoin"
http://www.reuters.com/article/2013/12/05/china-bitcoin-idUSB9N0IQ02220131205