Ethical dilema

Pretend for a minute that your Carl Kaufmann of Du Pont. Presume that federal health investigators are pursuing a report that one of your manufacturing plants has a higher-than average incidence of cancer among it's of cancer among its employees. The plant occurs to keep excellent medical records on all its employees, stretching back for decades which might help identify the source of the problem. The government demands the files. However if the company turns them over, it might be suspect of violating the privacy of all those workers who had submitted to private medical exams. The company deals an abstract of the records, however the government insists on the complete files, with employee names then the company tries to obtain releases from all the workers, however some of them refuse. If you give the records to the fed the company has broken its commitment of confidentiality. What would you do?