WASHINGTON, D.C. - A District of Columbia U.S. Circuit Court of Appeals panel on May 8 heard oral arguments over whether the Patient Protection and Affordable Care Act (ACA)'s contraceptive mandate substantially burdens Catholic groups' religious freedoms (Priests for Life, et al. v. U.S. Department of Health and Human Services, et al., No. 113-5368; Roman Catholic Archbishop of Washington, et al. v. Kathleen Sebelius, et al., No. 13-5371, D.C. Cir.).