Obviously not many, but it's not just about ownership of the plane, it's about the licensing too. And, more importantly, that the searchable data base exists, that piece was left out of the story. Oddly enough so many kids give out far more revealing info on FB, Snapchat, and Instragram. Didn't we used to just pass notes in class?

Also, there are hundreds of licenses people are required to have that are all available for public consumption. The best companies in the world have proven they can't protect the info, and the govt as well. No longer any real secure "privacy" per se.