Justices turn down surveillance case
The surveillance issue could reach the high court through a variety of other vehicles. The Justice Department pointed to three civil lawsuits filed in U.S. District Courts by the American Civil Liberties Union, the Electronic Frontier Foundation and conservative legal activist Larry Klayman.
In addition to the civil lawsuits, the government has disclosed the use of the NSA call-tracking database in at least two criminal cases. The defendants in those cases could use their criminal appeals to pursue constitutional challenges to the surveillance program, with those challenges also having the potential to reach the Supreme Court.