Glenn Greenwald's partner, David Miranda, was carrying a file that contained 58,000 "highly classified UK intelligence documents" when agents detained him at a London airport—including some that contained enough information to identify various intelligence staffers, the UK deputy national security adviser alleged today. The files were "highly likely to describe techniques crucial in life-saving counter-terrorist operations," Oliver Robbins said in a statement presented in court, according to the BBC. While the data was encrypted, Miranda allegedly had a piece of paper with instructions for decoding some of it.
The court was deciding whether to extend a temporary injunction on police examining the electronic documents, except for national security purposes. But Miranda's lawyers began the proceedings by saying they had reached a deal to allow police to review the files under agreed upon conditions. His lawyers contend that his detention was unlawful, and that the allegations against him are "sweeping and vague." (Read more David Miranda stories.)