Silly bankers. They should have sold out to one of the big players on Wall Street. They would still be in action and flush with cash.Regulators on Friday shut banks in Georgia, Michigan, Minnesota, Missouri, and California, bringing the number of bank failures this year to 120 amid the struggling economy and a cascade of defaults on loans.The Federal Deposit Insurance Corp. took over United Commercial Bank in San Francisco, with $11.2 billion in assets and $7.5 billion in deposits. East...