It’s another rocky day on Wall Street as investors woke up to discover two more financial firms had fallen. The AP reports:

Lehman Brothers, burdened by $60 billion in soured real-estate holdings, filed a Chapter 11 bankruptcy petition in U.S. Bankruptcy Court after attempts to rescue the 158-year-old firm failed. Bank of America Corp. said it is snapping up Merrill Lynch & Co. Inc. in a $50 billion all-stock transaction.

Meanwhile, American International Group Inc., the world’s largest insurance company, is restructuring, while a global consortium of banks is pooling $70 billion to lend to troubled financial companies. According to Christopher Whalen, managing director of Institutional Risk Analytics, for the first time in generations, consumers are starting to get nervous about the financial health of their banks. Are you?