Source: http://gizmodo.com/5620625/know-your-rights-these-cards-might-help-you-dodge-photo+bullying
We've already explained why harassment against photographers is illegal and intolerable—but now resistance might be easier. PetaPixel is now selling a set of portable cards that clearly state your legal rights as a camera-carrying citizen.
The durable set, drawing on the legal expertise of attorney and photography expert Bert Krages, also doubles as standard white balance cards. [PetaPixel]