The presence of a single non-exempt purpose, if more than insubstantial in nature, will destroy the exemption of the organization regardless of the number or importance of truly exempt purposes that are present.

CNN: AllPolitics - Ethics Transcript

About the only place that one can safely mention that planning is being done for asset protection reasons in in the area of exemption planning, since exemptions by their very nature are meant to defeat the rights of creditors.

FORBES: Kilker - Asset Protection Intent In Making Transfers To Protect Against Future Creditors Means Disaster When Creditor Appears