The standards for clinical and field trials keep being eroded on "efficiency" and "growth" [read: profit] grounds.
Look at REACH as a model: any chemical that is not demonstrably safe will be phased out.
It's not for people to show that GM is unsafe, but for the GM industry to show their product is safe. Unfortunately, "safe to humans" seems not to be enough in this case, but it shouldn't have been. After all, insecticides may be developed for a given parasitic species but may harm other useful ones. And biologists know this stuff. "It's the statue, man, The Statue."
Ms. ATinNM worked on antibiotic resistence transfer factors in the mid 70s. Her lab was showing the use of Tetracyline in animal food, only used to increase the weight gain per pound of food, was creating Tetracyline resistent bacteria in the human gut. The major researcher pissed someone off at the FDA and the lab was shut down.
Just as snark: the lab got its samples of environmental e. coli by swabing the tables of the local McDonald's.
A pleasure I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude