If you actually read the journal article, all you will find is a LOT of criticism of Monsanto's statistical methodology (which may be valid), but very little (if any) of any actual evidence of toxicity.
Basically , they claim (which may be correct): Monsanto didn't do their studies properly! They should've used more rats, for longer, and with more measured parameters !
And THEN they turn around and claim... even though the study is statistically unsound (according to their own argument), we're going to draw some conclusions that are weak to begin with, even within the weak frame of this supposedly faulty study !
It just doesn't make much sense.... from a professional scientists' standpoint (mine), this amounts to a lot of hemming and hawing about experimental methods, but absolutely nothing in the way of conclusions !