A long-time customer approaches you for financing for a new business venture. The customer offers as collateral a piece of property he has purchased in a rural location for the purpose of building a housing development. You send an appraiser to the property and he accidentally discovers that this property holds toxic waste. You're sure this customer is unaware of the waste; in fact, the waste is migrating and in a few years will invade the water table under a nearby farmer's fields. You explain the situation to your manager, who naturally instructs you to refuse to accept the property as collateral, but he also forbids you to mention the toxic waste to the customer. "Let them find out about it themselves," he says. Do you alert the customer to the toxic waste? Do you alert government regulators?

Who are the stakeholders? What are the ethical issues?