Your former accounting professor recently contacted you because she knows that you currently work for an accounting firm that performs compilation services for several privately held mining companies. The professor requested data concerning whether your firm's clients capitalize or expense certain environmental clean-up costs. Your clients discuss their accounting policies openly with you, but do not disclose these policies to outsiders. Your professor has agreed in writing to keep your clients' accounting policies confidential. The professor is a member of the AICPA, and she will not achieve any financial gain. May you disclose the requested information to the professor?