Utter nonsense. Requiring public schools to post the ten commandments in their classrooms is forcing a particular religion down the throat of every child, using taxpayer funds. It is advocating the value of the Bible over other religions or non-religion. If a Muslim majority school district required every classroom to post lines from the Quran, people would be outraged. Unless the class is literally studying religion or that area of history, posting religious texts is advocating that or those religions and is an act of establishing an official religion.