The principal searched the student's backpack and pockets but did not come up with any evidence of improper activity, says Mark Silverstein, legal director at ACLU Colorado.
Peek inside the backpack of Zhou Tao, a middle school student at Beijing's Shijingshan school, and you'll find four grammar texts, three math texts, one chemistry book, two books on physics, five on English, three on political science, not to mention an array of extracurricular and tutorial books.