:::: This is Warren's second edit when it became clear it was a total edit war, notice how he deletes nearly the entire article as it was before he came to it. From then on all the edits in the main space are his apart from some bots, someone who added the editorial tag, and for some reason I did a bit too, maybe it was to try to explain something?? 

 http://en.wikipedia.org/w/index.php?title=Concerns_for_an_early_Mars_sample_return&diff;=557073405&oldid;=556800566