Since the MBTA talk was cancelled at Defcon 16 I talked about Dutch transportation cards and systems. The room was pretty packed and the talk went pretty well considering I had ample time to prepare. After some waiting the video is up! You can see it in mpeg-4 (H.264) and in the .mov-format (that is somewhat bigger but delivers higher quality). For those interested that missed the presentation enjoy! Feel free to give feedback.
When interested: the slides were already available, but realize I made the presentation in just little time and used it mainly to keep my story straight.