It may be that the prospect of an active, informed, educated citizenry is so frightening because it would begin to question how the United States ended up with so many elected officials who are not only ignorant about science and history, but are willfully ignorant and want to impose their ignorance on the rest of us.
We talked about the Second Amendment this week in my Civics classes. In a normal term we spend very little time on it, as there aren't many interesting legal questions involved - nothing like free speech or The Church of Lakumi Babalu Aye vs. City of Hialeah, that most euphoniously named of Supreme Court cases.
There is a lot of talk today implying that the purpose of education is job training. Our nation will not survive if our education system merely produces economic units. We must safeguard the future of the republic by educating to increase the most essential national resource: informed, engaged citizens.