Crop Scientists Say Biotechnology Seed Companies Are Thwarting Research  

So yes, it turns out that, as rational people expected all along, biotech companies aren't keen on safety an other assessments of their products:

"Biotechnology companies are keeping university scientists from fully researching the effectiveness and environmental impact of the industry’s genetically modified crops, according to an unusual complaint issued by a group of those scientists.

“No truly independent research can be legally conducted on many critical questions,” the scientists wrote in a statement submitted to the Environmental Protection Agency. The E.P.A. is seeking public comments for scientific meetings it will hold next week on biotech crops.

The statement will probably give support to critics of biotech crops, like environmental groups, who have long complained that the crops have not been studied thoroughly enough and could have unintended health and environmental consequences."

In related news, research on transgenic maise contamination of wild corn, attacked and discredited eight years ago as methodologically deficient, is vindicated.