"The new rules ... require those with religious objections to providing some or all FDA-approved contraceptives to ... notify the government rather than their insurance carriers that they cannot provide the coverage.... [T]he government would subsequently be responsible for notifying insurers, which would then arrange contraceptive coverage.... Some experts had worried about the government's ability to facilitate the coverage due to the intricacies of ERISA, the federal law that governs pension and health benefits. But the interim rules explicitly give the government the ability to make benefit changes in the absence of the objecting religious organizations."