Of course they spied on YouTube and Facebook.<p>What's more important is whether they obeyed the law; and whether we know what the law actually means; and if the peoe doing the oversighting know what the law says.<p>One example is the debate about granting access to metadata. GCHQ was involved in that debate and lots of reporters wrote articles. But no one noticed that the existing laws exempt GCHQ and that they had been slurping this data all along.<p>All the data collected by squeaky dolphin appears to be publicly posted information, and used in bulk, so it's less troubling than privately posted information or individual's identified data.<p>I'm not sure if the "identify and target for propaganda" programme was ever created or was just a proposal.<p>The Interceptions of Communications Commissioner has reports about mistakes in information interception, and GCHQ does report mistakes to that office. But oversight still needs to be improved.