It sounds like a crazy idea. Convince a survivor of sexual assault to tell her story by filming herself with a fire-breathing dragon imposed on her face.
That's what Indian journalist Yusuf Omar did. He discovered that Snapchat, a mobile app that allows users to create photo or video "stories" that disappear after 24 hours, can be used to document a victim's first-person account while obscuring his or her identities.
Its built-in "filters" — illustrated or animated digital overlays — can transform a subject's face into anything from a flower child to a puppy.