i find it interesting that he does not like the publication of fine grained personal location data by blue sheet, but does not mind a likely much finer grained electronic one.
Scanning a tag when you enter the room does not equal publishing your location points to public. Those are completely orthogonal spaces.
i see ourselves some years from now having electronic tracking of whether X was in the room during which parts of the discussion. do not like.
You do not need to touch RFID or any form of reader when you exit the room. No one is to determine "parts of discussion".
Anyhow for those who just can not keep up with advances in technology - for some transition period - we could still have blue sheets and pen at the doors ;-)
r.