Bruce Schneier on why it’s not a good idea to have “priviliged access” to eavesdropping on encrypted communication:
The basic problem is that a backdoor is a technical capability — a vulnerability — that is available to anyone who knows about it and has access to it. Surrounding that vulnerability is a procedural system that tries to limit access to that capability. Computers, especially internet-connected computers, are inherently hackable, limiting the effectiveness of any procedures. The best defense is to not have the vulnerability at all.
The examples of what we know has happened already illustrate why giving “the good guys” a backdoor will make us all less safe.