Pentagon Sets Stage for U.S. to Respond to Computer Sabotage With Military Force
http://online.wsj.com/article/SB10001424052702304563104576355623135782718.html?mod=googlenews_wsj
LulzSec hacks FBI liaison and security firm
http://www.h-online.com/security/news/item/LulzSec-hacks-FBI-liaison-and-security-firm-1255298.html
The attack was apparently a reaction to plans in the US to start treating hacker attacks as an act of war.