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The authors of "" joins us for the one-hundred thirteenth edition of the GeoGearHeads to share some creative cache containers. The authors of the book and talked about the book almost a year ago on of the . We also heard from a couple people on past episodes. emailed about his experience with carrying a knife through airport security (which we'd talked about on ). We appreciated the voicemail from thanking for the article and information he shared on . Congratulations to for submitting the winning answer for this week's question. Thanks to for their donation of this week's gift! Thanks to for the answer we read. The live video session from this Google+ Hangout On Air can be found on . Subscribe to the feed: Social Media: Email: