Scotland Yard has defended a decision to detain a Guardian journalist's partner - saying the move was "legally and procedurally sound".
David Miranda says he was questioned for 9 hours while being held at Heathrow airport under terror laws.
His partner, Glenn Greenwald, is the reporter who interviewed American whistle-blower Edward Snowden.
Mr Greenwald - has called the detention of Mr Miranda's detention a "profound attack on press freedoms".
Mr Miranda who was traveling home to Brazil says six agents questioned him about his "entire life":.
Meanwhile,
The White House has denied asking the British authorities to detain David Miranda
Spokesperson Josh Earnest says the US Government was aware Mr Miranda was to be detained but says the US was not involved
