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Edward Snowden's leak of classified information about the NSA's surveillance of American citizens has touched off a debate about the need for government secrecy versus the public’s right to know. Two student readings and discussion questions probe the controversy (TeachableMoment USA 2013).

This classroom-tested curriculum consists of four standards-aligned, 45-minute lessons that aim to teach students how to evaluate advertising claims and misleading arguments, how to ask the right questions about dubious claims, and how researchers and scientific organizations use the scientific process to develop well-supported claims and synthesize scientific information (USA ...