A dozen nurses in New Jersey have rekindled the contentious debate over when health-care workers can refuse to play a role in caring for women getting abortions.

In a lawsuit filed in federal court Oct. 31, 12 nurses charge that the University of Medicine & Dentistry of New Jersey violated state and federal laws by abruptly announcing in September that nurses would have to help with abortion patients before and after the procedure, reversing a long-standing policy exempting employees who refuse based on religious or moral objections.