Spain said on Tuesday that credit markets were closing to the euro zone's fourth biggest economy as finance chiefs of the Group of Seven major economies were to hold emergency talks on the currency bloc's worsening debt crisis. Treasury Minister Cristobal Montoro sent out the dramatic distress signal in a radio interview about the impact of his country's banking crisis on government borrowing, saying that at current rates, financial markets were effectively shut to Spain. "The risk premium says Spain doesn't have the market door open," Montoro said on Onda Cero radio. "The risk premium says that as a state we have a ... (full story)