IMO, they should be banned. There are alot of reasons I believe this, but the number one reason is simply for morality, and the fact that it's just straight chemical poison. People believe that these government agencies are protecting them, when in reality, it's far from the truth. They are supposed to be protecting them, but we all know that you have to follow the money.
That means you have millions upon millions of unsuspecting people who are unknowingly poisoning themselves because they think if it's in what they're eating, it must be okay. That to me, is just not okay at all.