If only Greenpeace would consider their actions more carefully...
Because IMO they do have a point; it is important to try and limit the use of energy so that we'll last longer. But actions like these are not the way to do it. Worse: they'll most likely have the exact opposite effect as can be seen above.
Trying to force people or companies into doing something has never worked, and will only come to bite you in the behinds. Laser beaming messages; and in the end you'll only hinder people who only want to do their job and actually /earn/ a living for themselves. Job nicely done indeed.
Making people and governments aware will have much more effect. And trying not to overdo stuff and pulling into ridiculous scenario's helps too.
Example: In Holland there was a speedway all build and ready; approx. 15km of asphalt sitting ready to be used and help take traffic loads away from another busy (and because of that dangerous) highway.
Yet it couldn't be used. Because environmentalist groups (subsidized by the government no less) had filed complaints and managed to postpone the official opening of the road for at least 1.5 years. And to what end? Everything was done, all was ready and approved. No, IIRC they demanded another investigation.
Finally everything was put in place and the road has been used ever since. But actions like that do not help people understand nor appreciate, quite the opposite.
IMO this is no different. Quite a shame too because as mentioned above; I do agree that we need to work on conserving energy. Every little bit can help, but not with (IMO) idiotic actions like these.