Large sections of Korea's recovering bank sector are exposed to the liquidity problems facing Kumho Asiana Group, which were revealed over the Christmas period after several weeks of stock market rumours.Last week, Korea's Financial Supervisory Service (FSS) estimated that the country's financial institutions were exposed to W15.7 trillion ($13.5 billion) worth of Kumho Asiana debt, made up of W10.1 trillion in loans, W1.2 trillion in debt securities, and W4.4 trillion in other instruments. And, argued Moody's Investors Service in a statement on December 31, "the ...