Admitting to numerous Establishment Clause violations, the Cheatham County (TN) School Board has agreed to a settlement with the state's ACLU after a lawsuit alleged significant breaches of the separation of church and state in County schools.  According to the terms of the settlement, officials agreed to cease such activity going forward. From the ACLU-TN press release:

In accordance with the settlement, school officials will no longer encourage prayer or promote their personal religious beliefs to students in class or in conjunction with school activities and events.  Invocations will no longer be permitted at graduation ceremonies or school functions and speakers will no longer be selected because of their religious affiliations.  In addition, school officials will no longer permit non-student third parties, such as members of Gideons International, to distribute sacred texts during school activities or instructional time.  School officials will not cite the Bible or other sacred texts as authority for historical or scientific fact to students and will make good faith efforts to avoid holding school programs at religious venues.