I would file this under the heading, we need to be seen doing something. The Fed has come up with a limit to the size of banks based on the amount of liabilities of the firm (WSJ story). This is where the combination of free market ideas and risk mitigation come into conflict. One of the first questions I ask my students in bank regulation is, “Is big necessarily bad?” What we do going forward is not clear, but this regulation isn’t going to affect current banks, as in make them get smaller. So how have we really changed things? We haven’t, but it looks like we are doing something.