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More puzzles from the Puzzle Palace

A reader pointed me to an apparently dull collection of NSA documents recently posted by that useful source, One of the hidden gems is a "CMI Newsletter" containing a eight pages of crypto puzzles.

I've taken the liberty of posting the CMI Newsletter separately (PDF, click this link), but kudos go to GovernmentAttic for dredging up this diamond in the rough. If you work out answers, feel free to post them here, or at least provide a pingback so interested people can find them.

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