Either because it was debunked or because corn farmers have a large lobby/subsidies/etc. Take your pick, though the first theory is probably easier to prove that the second one.

You can see studies which cite that study (which would include debunkings) by doing a google scholar search: http://scholar.google.com/scholar?cites=3661119272352849363&...

One of the those studies has this to say about the study linked by the OP: "Weaknesses in the statistical methods used for reanalysis (see Doull et al. . .) " [1].

That paper also has a nice summary of other studies on GM foods.

[1] G. Flachowsky and C. Wenk, The role of animal feeding trials for the nutritionaland safety assessment of feeds from genetically modified plants – Present stage and future challenges, Journal of Animal and Feed Sciences, 19, 2010, 149–170

Corn farmers have children and eat corn too.

Either funding for repeat studies have been choked, or they had unsurprising results. At least they gave passably good instructions to duplicate their findings - beats many CS papers.

Regardless of what it says, my experience is that GE corn tastes bland. Maybe due to shipping.