https://harbingersdaily.com/almost-unanimously-1200-texas-school-districts-vote-against-allowing-prayer-and-bible-reading-time-in-school/
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Many districts rejected the optional policy due to "data and safety concerns," since, for accountability purposes, particularly in larger schools, there would need to be a record of the students who participated in the prayer time. Apparently, the "record" of students participating in biology class poses no threat, but students praying and reading religious texts does?..."