I've known this for some time. However the ACLU and their ilk have told their lie so often that most believe it true. Hopefully, W will be able to appoint a few pure jurists to the SCOTUS and set us back on course.
As a teacher, I don't mind religion in the schools, but this often means today that I support religion in the schools, as long as it is one that I don't oppose. My brother was prohibited by some so-called Christians (not the school system at all) from giving a graduation prayer because he was of a religion that some did not agree with, even though many people of different religions had done it before.
Contrary to what some belief, much religion has been taken out of the schools by lawsuits filed by those who opposed the school doing something that was done by a religion that they opposed or of "fear" of being offended by someone doing something from that religion. For example, in my state, a high school could not sing deity-linked Christmas songs because a Jewish student and her parents sued to have the school choir not do it. A Mormon in Texas sued to have school prayer removed. Fortunately in my school, we do observe moments of silence at some times and also sing all sorts of Christmas songs. I wouldn't have it any other way.