The best short explanation of this issue I have read so far is this: "People have a right to control the way their images is used - not a right to prohibit someone from photographing them in a public place" or words to that effect.
That just isn't the case. Someone can snap your photo in public and pretty much do whatever they want with it.
"Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."