A sign sits outside the headquarters of Notenstein Privatbank AG, formerly the headquarters of Wegelin &amp; Co., in St. Gallen, Switzerland, on Wednesday, March 20, 2013. Wegelin &amp; Co., who sold Notenstein Privatbank AG to Raiffeisen Group last year, were ordered to pay U.S. authorities almost $58 million at the end of a criminal case after the Swiss bank pleaded guilty to helping American taxpayers hide more than $1.2 billion from the Internal Revenue Service. Photographer: Gianluca Colla/Bloomberg via Getty Images