 In 2013, a top-secret order issued by the court, which was later leaked to the media from documents culled by Edward Snowden, required a subsidiary of Verizon to provide a daily, on-going feed of all call detail recordsincluding those for domestic callsto the NSA.Each application for one of these surveillance warrants (called a FISA warrant) is made before an individual judge of the court.The court may allow third parties to submit briefs as "amici curiae".