The real question is, when did this issue become such a hot topic that the masses demanded to know how it could possibly be legal? If nobody tells you that something is wrong, would you know any better not to do it? Scientists use animal testing because it is efficient. Righteous people defy animal testing because they are ignorant. The presidents realize that animal testing is efficient, but also realize that they must please the righteous people, because their ignorance is the only reason the presidents were elected in the first place.