MADISON, Wis. (AP) — Bloggers and free speech advocates are calling on prosecutors not to file charges against a teacher arrested for allegedly posting an anonymous comment online praising the Columbine shooters. Some were disturbed by the post police say James Buss left on a conservative blog, but other observers said it was a sarcastic attempt to discredit critics of education spending. The suburban Milwaukee high school chemistry teacher was arrested last week for the Nov. 16 comment left on http://www.bootsandsabers.com, a blog on Wisconsin politics. The comment, left under the name “Observer,” came during a discussion over teacher salaries […]