What counts as a "mundane celebrity?" Jimmy Carter has already said Snowden's actions were "beneficial" and that "America does not have a functioning democracy at this point in time."
Well, Jimmy Carter is a former president of the United States, ambassador, and politician.
I was thinking generally of famous people that don't have a past or present connection to public policy. Either way though, it's a grey term, so there is plenty of room for interpretation. The point, I think, remains the same.
As far as famous people of any sort talking to the public on this issue, my attitude is the more the better.
http://www.huffingtonpost.com/2013/07/18/jimmy-carter-edward...