GM to crack down on health coverage

General Motors Corp. is cracking down on workers who are collecting medical benefits for which they aren't eligible as it tries to trim its nearly $5 billion-a-year healthcare tab. The auto maker is giving its 67,000 hourly workers until Aug. 20 to voluntarily remove dependents who shouldn't be covered from their health policies, and after that employees must prove that covered family members are eligible. If GM paid for health expenses it shouldn't have, workers may be forced to reimburse the company, said GM representatives.