we found lawrence dunnigan was reimbursed for thousands of dollars, public money spent at exclusive hotels overseas. some as kwon, dunnigan made repeat visits to the club, a restaurant and club in china. >> there is a mitch you're of shock and dismay and we're going to get to the bottom of this. >> reporter: after dodging kutv's questions for week the port sites an ongoing investigation and that is the answer that the port spokesman gave to almost every one of our questions. why would the port approve these expenses? why omaha burse them? >> this is all part of the investigation. we're going to get to the bottom of the mart. >> they are doing this because they think they can get away with it. >> reporter: marvin brown is a professor of business ethics and author of the book "corporate ethics." most people do what they think is right, considering the world that they think they live in. so what these events tell us is that the kind of world that has been created by the people managing the port of oakland. >> reporter: as for lawrence dunnigan, mr. dunnigan, this is eric rasmussen, we tried t