“Anonymous is claiming to have begun shutting down UK government websites in protest of the treatment of Julian Assange.
At around 8pm UT, the UK Justice Department website went down under a distributed denial of service attack. About 40 minutes later the Department of Work and Pensions website was also taken offline. Both operations were carried out under the name #OpFreeAssange, Anonymous Twitter feeds report.”
Source: Anonymous takes down UK government websites in Assange attack • The Register