Mueller appears to have filed early response in 'mystery' case before Supreme Court: report
Former FBI Director Robert Mueller said cyber security will be the number one future threat in the country, but for the time being, "counterterrorism and stopping terrorist attacks" is more important. (Photo: Kit Fox/Medill Flickr)

Special prosecutor Robert Mueller appears to have filed a response in a "mystery" case before the Supreme Court, reports Politico.

Details of the sealed case are "murky" but tied to the Mueller investigation by reporting from Politico after officials closed an entire floor of a federal courthouse in Washington during arguments. Last week, a Bloomberg reporter noticed that the case had been filed with the Supreme Court.

The case involves a foreign company which is trying to quash a grand jury subpoena that was served on the firm.

"Most details of the case remain under seal at the Supreme Court since the company asked for an emergency stay last week, but an entry in the high court’s docket indicates a response was filed Friday, three days ahead of the Monday deadline set by the court," Politico reports. "If the Supreme Court decides not to step into the dispute, the details of the fight could remain and the identity of the company and country involved could remain hidden from public view. But if the justices decide to grant some relief to the company or hear the case on the high court’s regular docket, some additional details of the battle could surface, since the Supreme Court rarely entertains cases on an entirely secret basis."

Read the report here.