The tragic supposed suicide of digital activist, and co-founder of Reddit, Aaron Swartz happened just days ago and now Anonymous have stepped into the ring to play [hacking] ball. They leave a tribute message to Swartz, which says:
We tender apologies to the administrators at MIT for this temporary use of their websites. We do not consign blame or responsibility upon MIT for what has happened, but call for all those feel heavy-hearted in their proximity to this awful loss to acknowledge instead the responsibility they have - that we all have - to build and safeguard a future that would make Aaron proud.
The link to see it is here, and at the time of writing wasn't loading. I'm sure MIT will have the site updated shortly.