It is a dark day for the rule of law. Federal and state authorities have chosen not to indict HSBC, the London-based bank, on charges of vast and prolonged money laundering, for fear that criminal prosecution would topple the bank and, in the process, endanger the financial system.
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According to several law enforcement officials with knowledge of the inquiry, prosecutors found that, for years, HSBC had also moved tainted money from Mexican drug cartels and Saudi banks with ties to terrorist groups.
http://www.nytimes.com/2012/12/12/opinion/hsbc-too-big-to-indict.html