The Obama administration is strengthening its antitrust enforcement policy.
That said, this in itself probably wouldn’t have done anything about the “too big to fail” problem. It might have increased scrutiny over large bank mergers – like Nations-Bank of America, Bank of America-Fleet, or JPMorgan Chase-Bank One, but frankly those probably would have gone through anyway; the banking industry is just not that concentrated compared to some others. Too big to fail is a combination of size, interconnectedness, and the critical role of finance for the economy. But the signal that the administration will actually enforce antitrust law is a step in the right direction.