Through a glass (PRISM) darkly
No security professional ever made a good living by suggesting we need less security.
The sad thing is that all this snooping is only really going to catch the idiot low-life who feel a need to be strident in their extremist views. The Woolwich killing was used by (ignorant or duplicitous) politicians as an excuse for more surveillance, but in reality the perpetrators would not have caught by any new powers. The same applies to every terrorist outrage - we are always told after the event "it proves we need to introduce measure X Y or Z" without ever being offered a logically coherent argument as to how such measures, had they been in place, would have helped.
Meanwhile, in the Real World. the seriously Bad Guys will revert to operating off-grid (what, you think there was no terrorism before the advent of the Internet and mobile phones?????) and our glorious State will expend ever greater amounts of treasure and effort making sure it can keep tabs on the rest of us. I have nothing to fear, except the misuse of my taxes and the insult to my intelligence.
PS and what about the amusing posturing about the security risk (allegedly) posed by Huawei? Intrusive monitoring of network traffic by a foreign power??? Outrageous! How dare they - that's our prerogative