Bill sez: A US Internet "backbone" is one which connects to ALL the
NAP/MAEs in the US. Not just two. All of them.
Why not just start calling it the Internet "core". The core of the US
Internet no longer follows a backbone topology. The core is composed of
the major NSP's who operate national backbones providing national transit
and who interconnect at all or most of the public exchange points.
Yes, as does much of what you say...