Not surprisingly, the civil rights advocates that filed the complaint (including Amnesty UK, Liberty and Privacy International) aren't happy with this verdict. They plan to appeal the decision with the European Court itself, and note that the Tribunal heard the arguments in closed hearings. Liberty contends that the UK is effectively policing itself; much like the US' Foreign Intelligence Surveillance court, you're looking at a "secretive" panel determining the legitimacy of equally secretive government activities. Whether or not you believe GCHQ got the scrutiny it deserves, the appeal suggests that officials will have at least a little more explaining to do before they can rest easy.

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