I would find it very useful if in the Properties for a file (image, video, whatever) that you could have an option to mark the file as NWS - Not Work Safe, and instead of showing the file automatically, it would display a standard NWS logo image instead (even for the thumbnail images). The only way the user could see the file is if they clicked the the non-thumbnail NWS logo disclaimer image. It would also be very useful if a registered user had the option to turn on/off NWS content protection as well.