The US government's secret plans for a variety of apocalyptic scenarios have been revealed in a previously unseen batch of filings.
The newly released papers show White House strategies for the likes of a nuclear attack and other national emergencies could include cutting off all civilian communications - including the internet - and taking away passports.
The 500-page filings were obtained by the nonprofit Brennan Center for Justice at New York University of Law through a Freedom of Information Act request.