For me, it's hard to speak against the outcome; criminals are being caught, after all. I'm wary, however, to give the government total leeway with technology. It's the issue of giving an inch to someone, and they take a mile: It (potentially) opens the door for misuse later on down the road. Whether or not a society is a democracy or a dictatorship is irrelevant, as either one can abuse the technology available to it.
I never have clear answers in cases like this one, because there is that balance between security and privacy. So far this seems to be good thing, but who knows what kind of abuse will happen down the road.