The problem with security is entirely an ethical one, and not at all technological. No amount of technology can make up for an ethical dilemna. What we have with the NSA/GCHQ/five-eyes is entirely a cultural artifact perpetuated upon us all by those who stand to profit - greatly - from hatred, distrust, enmity among people. The fact is, as long as we continue to support the machinations of the military-industrial complex, and its endless streams of justifications for why it is we need to 'hate those people', we will be subject to their rule.
Shut down the warrior class, and we have a better chance at a secure future.