![TechSNAP in HD show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/041/133/small/techsnap-in-hd.jpg)
Summary: How an aviation blogger unlocked the secrets of the TSA’s barcode, if you’re a Barnes and Noble shopper we’ve got a story you need to hear, and a serious bug in the Linux Kernel. Plus a batch of your questions, and our answers. All that and so much more, in this week’s TechSNAP.