Yes, methods should certainly evolve, but I'm not sure that our values necessarily should.
Obviously, nobody is suggesting that law enforcement agencies and security agencies should be existing in the 20th century. They should be using the Internet. They should be monitoring electronic communications as appropriate. Certainly there is a need to have up-to-date investigative techniques, but at the same time, my point in framing the idea that terrorism has been around for quite a while is to counter the idea of the narrative that's come out, which is to almost present this as an unprecedented kind of threat, as if the gravity of what western countries face today is vastly beyond anything we've seen before.
You can look to parallel examples again. You can look to the U.K. in the 1980s and to what Spain faced with the Basque separatists, and you can see that time and again western democracies have faced threats that were far more serious, you could argue, than are being faced today, and have managed to persevere. I think that level of historical context is important in terms of maintaining our values and our respect for privacy, in terms of keeping that balance, as opposed to saying that law enforcement shouldn't adapt and improve their technology to make use of new technologies that are available.