I found this story via iTeau's Dirt -- who found it via a couple of other places. The text from KOCO 5 explains it fairly well
Bill Crozier, a Union City Republican going against incumbent Democrat Sandy Garrett, said he believes old textbooks could be used to stop bullets shot from weapons wielded by school intruders.
If elected, he said he would put thick used textbooks under every desk for students to use in self-defense.
"We are doing this as an experiment because at Fort Gibson, many young people were shot in the back," Crozier said in the videotape, referencing a December 1999 middle school shooting in eastern Oklahoma, in which a student wounded four students with a 9 mm semiautomatic handgun.
"We need to look at protection of young people that sometimes people may think you are a little smarter than everybody else or a higher IQ or whatever. They need to look at what the end result would be," Crozier said.
"This would be to protect the children in an immediate situation. This is something that any student, any classroom in the country could do immediately," he said.
In case you are wondering -- yes most libraries will charge you for a damaged material if you turn it in after using it for target practice.