Is the US domain screwed up, or is it Internic, or whut?

I only checked venera.isi.edu for pima.az.us. Here is what I got:

owlman.academ.com% dig @venera.isi.edu pima.az.us ns

; <<>> DiG 8.1 <<>> @venera.isi.edu pima.az.us ns
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; pima.az.us, type = NS, class = IN

;; AUTHORITY SECTION:
az.us. 1D IN SOA VENERA.ISI.EDU. us-domain.ISI.EDU. (
                                        981221 ; serial
                                        12H ; refresh
                                        1H ; retry
                                        2W ; expiry
                                        1D ) ; minimum

;; Total query time: 374 msec
;; FROM: owlman.academ.com to SERVER: venera.isi.edu 128.9.176.32
;; WHEN: Tue Dec 29 16:29:55 1998
;; MSG SIZE sent: 28 rcvd: 93

Checking the US-Domain list of delegates, I see that pima.az.us is not
supposed to be delegated. I see that co.pima.az.us is.

academ.com% dig @venera.isi.edu co.pima.az.us ns

; <<>> DiG 2.2 <<>> @venera.isi.edu co.pima.az.us ns
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr rd ra; Ques: 1, Ans: 2, Auth: 0, Addit: 2
;; QUESTIONS:
;; co.pima.az.us, type = NS, class = IN

;; ANSWERS:
co.pima.az.us. 604800 NS ns.co.pima.az.us.
co.pima.az.us. 604800 NS tophat.co.pima.az.us.

;; ADDITIONAL RECORDS:
ns.co.pima.az.us. 604800 A 159.233.1.2
tophat.co.pima.az.us. 604800 A 159.233.1.1

;; Total query time: 168 msec
;; FROM: academ.com to SERVER: venera.isi.edu 128.9.176.32
;; WHEN: Tue Dec 29 17:38:40 1998
;; MSG SIZE sent: 31 rcvd: 101

My (way crusty) us delegation appears to be working properly.

  - Jared

; <<>> DiG 8.1 <<>> any netherlands.ypsi.mi.us.
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 7
;; QUERY SECTION:
;; netherlands.ypsi.mi.us, type = ANY, class = IN

;; ANSWER SECTION:
netherlands.ypsi.mi.us. 6d23h59m18s IN CNAME nether.net.

;; AUTHORITY SECTION:
MI.us. 6d23h59m18s IN NS VENERA.ISI.EDU.
MI.us. 6d23h59m18s IN NS NS.ISI.EDU.
MI.us. 6d23h59m18s IN NS RS0.INTERNIC.net.
MI.us. 6d23h59m18s IN NS NS.UU.net.
MI.us. 6d23h59m18s IN NS ADMII.ARL.MIL.
MI.us. 6d23h59m18s IN NS EXCALIBUR.USC.EDU.

;; ADDITIONAL SECTION:
VENERA.ISI.EDU. 1d19h35m1s IN A 128.9.176.32
NS.ISI.EDU. 1d19h35m1s IN A 128.9.128.127
RS0.INTERNIC.net. 1d19h26m43s IN A 198.41.0.5
NS.UU.net. 1d23h13m23s IN A 137.39.1.3
ADMII.ARL.MIL. 22h8m21s IN A 128.63.31.4
ADMII.ARL.MIL. 22h8m21s IN A 128.63.5.4
EXCALIBUR.USC.EDU. 22h8m21s IN A 128.125.51.11

;; Total query time: 4 msec
;; FROM: puck.nether.net to SERVER: default -- 204.42.254.5
;; WHEN: Tue Dec 29 19:13:16 1998
;; MSG SIZE sent: 40 rcvd: 328