Banks are required to file SARs on MSBs that are not registered at the federal level or licensed (as required) at the state level. Apparently because the Times Square bomber's operations were financed through non bank financial institutions, FinCEN has been on the hunt for unregistered MSBs over the last several months. Accordingly, the SAR filing instruction is even more important than it was before.
There is no exemption from filing continuation SARs on any subject, including this one.
The irony is powerful, but I absolutely agree: My bank would only file multiple SARs on profitable customers. The others would be gone long before the continuation SAR was due.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.