A while back I did an interview with Charles Torre  about the changes to security in CLR v4, and he posted it to the Channel 9 videos site yesterday.

I start out talking about the security policy changes I've been covering here over the last week, and then transition into an overview of some of the transparency changes that I'll be talking about once I finish with the policy changes.

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(The full video is also available here: http://channel9.msdn.com/posts/Charles/Shawn-Farkas-CLR-4-Inside-the-new-Managed-Security-Model/)