Well Crichton has conducted no studies to my knowledge- he only cites them. I have a lot of respect for him and the work he does. He is a writer and I don't hold him to the same scientific scrutiny. The problem with junkscience is they purport to be scientific. Further, their use of selective citations is troublesome- often times the use of the mainstream media misuse of the actual scientific study. For example they cite 1 article about how DDT does not cause egg-thinning. If they'd look at the article, they were looking at very low dosages. That does not negate the mounds of other research that suggests the opposite. It's embarrassing that junkscience is associated with mainstream conservatism.
The main problem i have is the politics being played on both sides of the aisle. It can make the truth difficult to find.