If you have countered privacy concerns from people like me with that silly statement, you may be interested in reading this article.
A particular tidbit:
One can usually think of something that even the most open person would want to hide. As a commenter to my blog post noted, “If you have nothing to hide, then that quite literally means you are willing to let me photograph you naked? And I get full rights to that photograph—so I can show it to your neighbors?”