FILE - In this Sept. 17, 2013 file photo, pro-science supporters rally prior to a State Board of Education public hearing on proposed new science textbooks, in Austin, Texas. The Texas Board of

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FILE - In this Sept. 17, 2013 file photo, pro-science supporters rally prior to a State Board of Education public hearing on proposed new science textbooks, in Austin, Texas. The Texas Board of Education is poised to tighten rules on who can serve on citizen review panels that scrutinize proposed textbooks for use statewide, hoping to tamp down future controversies over the teaching of evolution and other issues. (AP Photo/Eric Gay, File)

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Associated Press
Fri, Jan 31, 2014 7:14 PM EST