Well this is awfully suspicious
$ dig @8.8.8.8 petitions.whitehouse.gov
; <<>> DiG 9.6-ESV-R4-P3 <<>> @8.8.8.8 petitions.whitehouse.gov
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 39404
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;petitions.whitehouse.gov. IN A
;; Query time: 500 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Jun 15 18:05:23 2013
;; MSG SIZE rcvd: 42