In 2002, the ALA filed suit with library users and the ACLU against the United States Children's Internet Protection Act (CIPA), which required libraries receiving federal E-rate discounts for Internet access to install a "technology protection measure" to prevent children from accessing "visual depictions that are obscene, child pornography, or harmful to minors." At trial, the federal district court struck down the law as unconstitutional. The government appealed this decision, and on June 23, 2003, the Supreme Court of the United States upheld the law as constitutional as a condition imposed on institutions in exchange for government funding. In upholding the law, the Supreme Court, adopting the interpretation urged by the U.S. Solicitor General at oral argument, made it clear that the constitutionality of CIPA would be upheld only "if, as the Government represents, a librarian will unblock filtered material or disable the Internet software filter without significant delay on an adult user's request."