And now a word from the French:
http://www.msnbc.com/news/979081.asp?0cv=CB20
So it's not just an American rube school in Muskogee, (btw that's NOT where Oral Roberts University is, that's in Tulsa), but also Germany and now France who are spending valuable school time on the symbols of superstition.
There is always a tradeoff of rights when an individual lives in a society. Receiving a public (free) education may require only some reduction of freedom for one person and a great deal more for another. If a person, or their parents, do not want to want the tradeoff, they must find other means of gaining the same education.
Sophia: regarding the examples you gave about the inhaler and the knife. In the first case, the school is a twit, if you can call an institution a twit.
Inhalers are clearly not what is intended for stricture by the rules.
In the second, the MOTHER is a twit and so is the son who upon seeing the knife in his lunch ought to have taken it to the nearest teacher instead of waiting to be outed.