Teen espionage fans will appreciate the numerous gadgets made from everyday materials. One afterword by a noted cryptologist and another from an infamous hacker further reflect Doctorow's principles, and a bibliography has resources for teens interested in intellectual freedom, information access, and technology enhancements. Curious readers will also be able to visit BoingBoing, an eclectic group blog that Doctorow coedits. Raising pertinent questions and fostering discussion, this techno-thriller is an outstanding first purchase.
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