These private enforcement actions appear to build on some weaknesses that were made public as part of the Fed's annual stress tests of the largest banks. Bank of America in April was forced to resubmit a capital plan, and had to suspend planned increases in shareholder pay-outs, after it had incorrectly reported data used to calculate capital ratios to the Fed. A plan by Citigroup ( C ) was rejected altogether, with the Fed saying the bank's internal examination process didn't sufficiently consider how its sprawling business across the world would weather a hypothetical crisis scenario. Global Warnings The increased risk scrutiny from U.S. regulators is playing out on the international stage as well. The Basel Committee of bank regulators in December said only one-third of the world's 30 largest banks would have a sufficient grip on their data by 2016. Another third would not be ready by the deadline, while the remainder said they would be ready, but their national regulators were skeptical.