United States History, Foreign Language Study, Military Policy, Espionage, Mathematics, Mathematics, Children - Games & Activities, Computers - General & Miscellaneous
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Overview
When a country sends out a secret coded message, it's up to the National Security Agency to crack the code. Agency workers will find out if there is a threat to the United States. Join the NSA to learn how this secret agency works to keep the country safe.Book Details
Published
January 1, 2008
Publisher
Coughlan Publishing
Pages
32
Format
Hardcover
ISBN
9781429612746