I don't know why Snowden is so quick to tweet that this is a victory. To me, it's a multivariate equation, and all they've done is made one of the variables smaller. They can sustain collection at the same amounts, by making another variable proportionally larger. For instance, what's changed is that they no longer collect signals that mention a target, only signals to or from a target. So all you need to do to keep collecting the same amount, is to make a lot more targets.