>>>>> "John" == John C Klensin <john-ietf@xxxxxxx> writes: John> On the other hand, if there is a real commitment to action, John> then WGs have to be accountable for design decisions that do John> (or do not) support the goal and be ready to explain their John> decisions, even privacy-protecting ones that impose or John> increase costs to performance, operations, or elsewhere. And John> I would expect (not merely fear) ADs to push back strongly on John> a WG that was unwilling or unable to do that and expect John> Nomcoms to hold ADs accountable if they did not enforce the John> intent of the rules. Strongly agreed. And if we don't have a community commitment to do that can we please be honest with the world and tell everyone that when we look at the cost of this issue it was something our community did not choose to pay? John> It is not clear to me that the community is really willing to John> make that commitment. Fortunately, I'm lucky enough to not John> have to make that call. I hope we are willing to make that commitment. Note however that I do not want ADs pushing back at the end of the process (unless WGs clearly failed to get adequate review of their architectures up front.) End-of-process security work is rarely all that productive. You spend weeks or months fighting for little gain and for everyone involved walking away with a sence of frustration and a diminished sense of joy in the engineering challenges we face. I want ADs to be pushing back in the early architecture phases. Comments on early architecture drafts, and WG-decision-level appeals filed early in the process are probably better tools for pushing back on WGs that are not adequately considering privacy than late-stage discuss positions requiring architectural change. And as Eliot points out, the question of what balance in tradeoffs is appropriate will evolve over time. At the beginning if a WG does a good job of considering something and you just don't like how they balanced the issues, your only option is to start a broader discussion. That's how it should it be. If community norms emerge, then there are tools for applying those.