USA Today offers clear explanation of the delay issued by Justice Sonia Sotomayor:
Sotomayor acted on a request from an organization of Catholic nuns in Denver, the Little Sisters of the Poor Home for the Aged. Its request for an emergency stay had been denied earlier in the day by a federal appeals court.
The government is "temporarily enjoined from enforcing against applicants the contraceptive coverage requirements imposed by the Patient Protection and Affordable Care Act," Sotomayor said in the order. She gave government officials until 10 a.m. EST (1500 GMT) Friday to respond to her order.
The law requires employers to provide insurance that covers a range of preventive care, free of charge, including contraception....
Sotomayor's decision to delay the contraceptive portion of the law was joined by the U.S. Court of Appeals for the District of Columbia Circuit, which also issued an emergency stay for Catholic-affiliated groups challenging the contraceptive provision.
The article includes the arguments from the nuns lawyers.