On June 27, 2012, the "Financial Securities Authority – FSA" of the United Kingdom sanctioned the Barclays Bank to have manipulated the Libor. By a chain reaction, on July 6, 2012, the German regulator, Bafin, opened an investigation into banks, with no doubt on Deutsche Bank, while the Japanese regulator, the "Securities Exchange Commission" in the United States, the Canadian competition office, in particular open all investigations since the 6 July concerning all banks within their competence on their statements. In addition, JP Morgan said that it was already the subject of a class action in this regard. The domino effect begins.

The Executive Board of Governors of the North America Federal Bank had only four governors on seven seats established. But two people, Jerome Powell (Banker), and Jeremy Stein (Economist) appointed by the President of the United States Barak Obama, could not take their function, because their appointment in December 2011, was not approved by the Senate. It was enough that two parties will disagree with each other, while Mr. Powell is Republican and Mr. Stein is democratic, to paralyse the whole because of the willingness of opposition of the Republican Senator David Vitter. The JP Morgan case led the two parties to an arrangement and the appointments were approved by the Senate on May 18, 2012.

After the close of financial markets , the Charmain of JP Morgan, Jamie Dimon, announced on 10 may 2012, the loss of 2 billion dollars on hedging activities. The announcement was carried out by a conference call, the Chairman saying the past that this is the result of errors of assessment and in the future that losses may increase. Commentators have pointed out that it made less legitimate criticism that this Chairman has always made on the regulation of banking of the Dodd-Frank Act and the ban of trading for own account, the press considered moreover that the manager has more shown by such a result the need of constraint to exercise in the future on banks. But should we have to confuse ad hoc case and the general rule to adopt? Is relevance of a critic and special case in which is described that is one was critical can be remain relevant?