A Swiss bank that used its Cayman Islands’ branch to engage in what a US federal judge has branded “predatory lending practices” is being investigated by the US authorities. Senior officials of Credit Suisse, Switzerland’s second largest bank, are facing claims that they pocketed millions of dollars by dishing out loans that were impossible to repay. On Tuesday, 15 September, 31 of the bank’s officials received subpoenas demanding that they hand over internal documents that explain why they loaned $375 million to the now bankrupt Yellowstone Club in 2005. The Yellowstone Club, founded by American tycoon Tim Blixseth, was once...