PHILADELPHIA, June 29: With just days to go before two of the city’s most prestigious hospitals refuse to hire smokers, the ban has relit a debate about the wisdom of regulating workers’ behavior away from the workplace. Both the highly rated University of Pennsylvania Health System, which includes the Hospital of the University of Pennsylvania, as well as the Children’s Hospital of Philadelphia, named by US News and World Report as America’s top children’s hospital this year, will join dozens of hospitals across the country when they implement their policy on Monday, July 1. (agencies)