[downandout]

Have you considered creating something that would help tie the content to the person viewing the slides? Might be really useful for any security sensitive organization. For example, if the color scheme on certain graphics was programmatically modified slightly for each person who viewed the content, then the next leaker could be immediately identified (if they don't decide to voluntarily publish their name). Something like this would survive screenshots/resizing/etc. You could also enable them to put tags where the software can fill in identifying info in the content. For example a link in the slides might be modified to include a number identifying the viewer, and if that link pops up anywhere, it's off to Gitmo.

Can't believe NSA doesn't already do this stuff.