The main entrance of the Bank of England is seen through the side passenger window of a London bus as it travels along Threadneedle Street in London, U.K., on Thursday, March 6, 2014. The Bank of England yesterday released minutes of central bank meetings with traders from some of the world's biggest banks where they discussed concerns that currency benchmarks such as the WM/Reuters 4 p.m. London fix were being manipulated. Photographer: Matthew Lloyd/Bloomberg via Getty Images