The global bank HSBC has been used by Mexican drug cartels looking to get cash back into the United States, by Saudi Arabian banks that needed access to dollars despite their terrorist ties and by Iranians who wanted to circumvent United States sanctions, a Senate report says. The 335-page report released [on July 16] also says that executives at HSBC and regulators at the Office of the Comptroller of the Currency ignored warning signs and failed to stop the illegal behavior at many points between 2001 and 2010. The problems at HSBC, Europe's largest financial institution, [are] indicators of a broader problem of illegal money flowing through international financial institutions into the United States. The report on HSBC is the latest of several scandals that have recently rocked global banks and highlighted the inability of regulators to catch what is claimed to be widespread wrongdoing in the financial industry. The British bank Barclays recently admitted that its traders tried to manipulate a crucial global interest rate, and multiple major banks are under investigation. JPMorgan Chase disclosed last week that its employees may have tried to hide trades that are likely to cost the bank billions of dollars. The Office of the Comptroller of the Currency has come under particularly harsh criticism for showing too much deference to the banks it regulates.