The Sizewell nuclear power station was blockaded twice last year. With the government announcement on nuclear power they again made their way down to Sizewell. However, expecting a large police/security presence they did not attempt to blockade. There was media interest from Channel 4 and PressTV (Iranian TV) and subsequent interviews for BBC and Look East (local BBC).
There is a video of their last action at  http://www.youtube.com/watch?v=Ti73TfSFSJU
Despite all the media coverage there are many issues surrounding nuclear power that have not been mentioned. For example the vast amount of CO2 emitted by the mining and milling process (see  http://www.wise-uranium.org/).
The protesters will be back.