Problems with wikipedia [OT?]

[Joerg Bergmann]

I use FC11 and just observed problems with name server resolution to,
say, de.wikipedia.org (many other wikipedia addresses too). Tried 2
different (german) locations using 2 different (german) name servers:
[bergmann at T60 ~]$ host -a de.wikipedia.org
Trying "de.wikipedia.org"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33227
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;de.wikipedia.org.        IN    ANY

;; ANSWER SECTION:
de.wikipedia.org.    331    IN    CNAME    rr.wikimedia.org.

Received 61 bytes from 193.189.244.225#53 in 128 ms
[bergmann at T60 ~]$ host rr.wikimedia.org
Host rr.wikimedia.org not found: 3(NXDOMAIN)
=== other location ===
[bergmann at ptpp53 ~]$ host -a de.wikipedia.org
Trying "de.wikipedia.org"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19010
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;de.wikipedia.org.        IN    ANY

;; ANSWER SECTION:
de.wikipedia.org.    1802    IN    CNAME    rr.wikimedia.org.

;; AUTHORITY SECTION:
wikipedia.org.        63159    IN    NS    ns2.wikimedia.org.
wikipedia.org.        63159    IN    NS    ns0.wikimedia.org.
wikipedia.org.        63159    IN    NS    ns1.wikimedia.org.

;; ADDITIONAL SECTION:
ns0.wikimedia.org.    1540    IN    A    208.80.152.130
ns1.wikimedia.org.    1540    IN    A    208.80.152.142
ns2.wikimedia.org.    1540    IN    A    91.198.174.4

Received 163 bytes from 141.30.66.1#53 in 1 ms
[bergmann at T60 ~]$ ssh ptpp53.phy.tu-dresden.de
Last login: Wed Mar 24 20:16:10 2010 from 82.113.121.37
[bergmann at ptpp53 ~]$ host rr.wikimedia.org
Host rr.wikimedia.org not found: 3(NXDOMAIN)
=== trying the wikimedia name server ===
[bergmann at T60 ~]$ host de.wikipedia.org 208.80.152.130
Using domain server:
Name: 208.80.152.130
Address: 208.80.152.130#53
Aliases:

de.wikipedia.org is an alias for rr.wikimedia.org.
rr.wikimedia.org is an alias for rr.pmtpa.wikimedia.org.
rr.pmtpa.wikimedia.org has address 208.80.152.2
=== entering a line into /etc/hosts ===
208.80.152.2    de.wikipedia.org

And now I can view http://de.wikipedia.org! But others still unreachable
(e.g http://en.wikipedia.org). What is wrong? Is there an issue with 
Fedora 11,
with the german name servers or with wikipedia?

Joerg