Laws and Facts

The one great problem with the current Intelligent Design case is not whether or not it is a fact.
It is the idea of legislating curriculum.
The proponents of Intelligent Design are, in fact, saying, "We think this should be taught to everybody, because we believe it." They want a law that will allow them to force an unwilling Establishment to promote their idea, regardless.

Can the proponents of Planet X, or the Hollow Earth Society, have their beliefs taught in schools, because people believe in these theories, and current science cannot 100% disprove them? If not, why not?
Shall we teach reincarnation as fact? There is plenty of evidence for it, and science cannot prove it doesn't exist.

The proponents of Intelligent Design will label this as hogwash, of course. All they are saying is that there must be an intelligent designer - nothing more, they will argue. Any of these other arguments are nonsense, unlike theirs.
But look at what their argument states. Their argument is that there is an intelligence directing the development on life on this planet. If the spotted owl goes extinct, then the Designer must have wanted it that way, or he would have prevented it. Therefore, who needs conservation?
If influenza mutates into a killer varient, then the Designer must have done it on purpose. Why would he hate us so much?
It implies that we are meant to be the way we are. If man was meant to fly, then the Designer would have given us wings.
And so on.

We cannot allow a belief - any belief - to be taught BY LAW.
Let the theory work its way through the system, like Newton's Laws, Galileo's moons, and Pasteur's processes did. Truth will not falter.