Are the recent string of hacker attacks a government sponsored operation meant to rouse public support for internet censorship bills in Congress that public would normally protest against?
Just think about some of the bills congress is trying to push through in the name of anti-piracy and cyber security.
The ProtectIP act would allow the government, even on behalf of requests of corporations to seize websites without the due process of law, entirely sidestepping the constitution and even allow complete censorship of search engines and the media.

PC Magazine: Are Hacker Attacks Government Operation To Push Internet Censorship Laws?