Daniel Dennett's NYT essay on intelligent design is spot on from beginning to end. If you're confused about this issue, this is the place to go.
Dennett concludes:
Since there is no content, there is no “controversy” to teach about in biology class. But here is a good topic for a high school course on current events and politics: Is intelligent design a hoax? And if so, how was it perpetrated?
OK, that's a good high school question. But how about a question for adults? Has the hegemony of secularism in public institutions, such as the schools, generated it's own backlash? Is intelligent design a symptom of a much deeper problem: the failure of our public institutions to embody the ideals of liberal neutrality?