I haven't listened to this yet, but for those who found this talk interesting Bruce also appears on the upcoming episode of Econtalk (www.econtalk.org). Those with a hacker mindset should be able to figure out that the episode is already up and accessible, just pay careful attention to how Econtalk names its episodes.
The TheCommandline.net podcast is approximately 30 minutes and the Econtalk.org is about 60 minutes and covers more topics like surveillance and terrorism in the end.
Bruce is very consistent in using his metaphors and very enjoyable in both podcasts, if you can't guess it, this one makes a good teaser.