First of all, the article is about two individuals who are light weights ($10k in undeclared cash over 3 years).
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Hope you didn't get your $10k from "Further, the Lords allegedly failed to report cash receipts in excess of $10,000."
Over 10k simply means that they failed to report transactions over $10k, a failure to comply with AML reporting regulations. On top of running an exchange & pushing Xanax like a bunch of high school kids.
If you accept cash in person, AML in does not apply. AML has to do with bank deposits with a single purchase.