I have reviewed this document as part of the security directorate's
ongoing effort to review all IETF documents being processed by the
IESG. These comments were written primarily for the benefit of the
security area directors. Document editors and WG chairs should treat
these comments just like any other last call comments.

Summary: ready with nits

The Security Considerations changes added in -01 seem good.

Comment: Could the responsible AD annotate each "safe" normative downref
(doesn't require community review), along with the rationale? (e.g.,
foundational or architecture document having Informational status) Or is
that putting too much burden on the AD?  I know this is a substantive
comment late in the process, so feel free to disregard.

-Tom