Hillary Clinton, the US Secretary of State, warned David Miliband that America would consider cutting security co-operation with the UK if a British court releases information about a former Guantanamo Bay detainee, two judges have been told.
Mrs Clinton personally told the Foreign Secretary that the US government would consider the dramatic step if a short summary of the treatment of Binyam Mohamed is placed in the public domain, the High Court was told.
A hearing was told that the move could cause "serious harm" to Britain's national security and potentially put the lives of British citizens at risk.
Karen Steyn, representing Mr Miliband, told two senior judges that members of the Obama administration, including Mrs Clinton, had made clear that intelligence sharing between the two countries "would" be reconsidered if the court went ahead with plans to publish the information.
