Kind of a broad topic, but how do you feeling about the line between public and private? Where do you think it lies (or where you think it should lie)?
If that's too broad, then here are some other questions: Should some things always be public or private? Do certain situations (flying on a plane or speaking to police) or people (such as politicians, celebrities, or children) change what should be public and private? What is privacy? Is privacy a right or privilege?