A leading expert and advocate on the power of ethical leadership in business will speak at Iowa State University on Thursday, Feb. 25. Frank Bucaro will present “How to Succeed Ethically When Others Bend the Rules: The VW and GM Scandals” at 8 p.m. in the Memorial Union Great Hall. His talk is free and open to the public. Bucaro is senior ethics adviser and content provider for the Automotive Institute of Ethics, and ethics content provider for Compliance Velocity, a mobile app for pharmaceutical companies.