Videorecordings of the Symposium and the Users Meeting are now online.
Symposium videos:
http://vms.fnal.gov/asset/advanced-video?v&seriesName=50th+Anniversary+Symposium&submit=Submit
Users Meeting videos:
http://vms.fnal.gov/asset/advanced-video?seriesName=50th+Annual+Users+Meeting&submit=Submi