The Foreign Intelligence Surveillance Court (FISC) has released an Opinion, justifying the NSA's telephone record collection program. In the Opinion, Judge Claire Eagan states that "there is no Fourth Amendment impediment to the collection" of all domestic call detail records. Judge Eagan also concluded that all domestic call detail records are "relevant" under Section 215 because "individuals associated with international terrorist organizations use telephonic systems to communicate" and because the government argued that bulk collection is 'necessary to create a historical repository of metadata' in order to identify 'known and unknown operatives. This FISC opinion was issued more than a month after EPIC filed its Mandamus Petition challenging the NSA domestic surveillance in the U.S. Supreme Court. The Eagan opinion has also been criticized by legal scholars. For more information, see In re EPIC.