In the arcane world of federal pension law, so-called church plans have historically attracted relatively little attention. This is changing, however, in the wake of several high-profile lawsuits recently brought against several large Catholic and other church-affiliated health-care systems. What is driving these lawsuits? A pension plan that qualifies as a “church plan” is exempt from the Employee Retirement Income Security Act (ERISA), including its funding requirements and the plan termination insurance …