USD/RUR and BTC/RUR prices in btc-e.com are not reflect the real price for USD vs Rubel for example in: http://www.xe.com/currencyconverter/convert/?Amount=1&From=USD&To=RUB 1 USD is 30.6 Rubel and USD/RUR trade for Ask 31.66 Bid 31.08 How can it be? No one take this arbirtage?