Security - The Big Picture

Bruce Schneier, well-known security pundit, has an excellent 20 minute presentation from a TED conference where he discusses the concept of security. Mr. Schneier frequently comments on technology security issues, but in this presentation, he expands his scope to talk about the very concept of security and illustrates how we make security-related decisions every day, often without even thinking about it. Here is a link to the video of the talk.