"What this is about is the degradation of the scientific method. If we allow preconceived, hopelessly biased arguments to be taught as science - WHETHER OR NOT THEY ARE TRUE - we are weakening the scientific method, and we're putting everyone who relies on science - all of us - at risk."

This is exactly why ID is bad. Science might not be provable, but it IS disprovable. ID is not provable and by the way it is defined can also never be disproved. That makes it not science, and something that has as much business in a science classroom as alchemy or astrology.