Developers of the BitTorrent file-sharing process have opened an experimental data-synchronising tool up to the public.

BBC: BitTorrent Sync challenges cloud-based file management

Newsnight correspondent Peter Marshall says news of the war-crimes file, which was opened six years ago, has emerged after a Department of Justice (DoJ) investigation.

BBC: Guantanamo man on terror charge

The father's information was vetted and a determination on how to proceed was made through a U.S. inter-agency process, and a file was opened on Abdulmutallab about five weeks ago.

CNN: STORY HIGHLIGHTS

But still, her MI5 file remained open - and when she returned to London, officers opened her mail.

BBC: Today - The Lee Miller file