To date, I think those questions were answered best in an interview with Ars Technica’s Jon Stokes.

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Blogger Bob on the TSA blog, in part of his response to a recent XKCD cartoon.

There are many valid reasons to complain about TSA but would you ever have expected them to link to a cartoon poking fun at them or conduct an interview with a wonky nerd blog? You gotta admit, that’s pretty sporting of them.