The U.S. banking system has no reserves

Printing Money to Avoid Immediate Banking Collapse
According to the Federal Reserve Board website, U.S. non-borrowed bank reserves have gone from $37B to $199M (nope, that's not a typo) in the last month. We have been discussing this with Sitka Pacific Capital's Mike 'Mish' Shedlock for the last two weeks. He concludes: "Banks in aggregate have now burnt through all of their capital and are forced to borrow reserves from the Fed in order to keep lending." Simply put, the U.S. banking system has no reserves. In addition, the FDIC has recently begun modernizing large-bank insurance rules. We hope this is a wake-up call to everyone as to the extent of the credit crisis. Bank account balances should be used only for transactions.

Details here.