What can be done to change single stories and ethnocentrism, and how do these concepts affect communication?

Single stories and ethnocentrism…what do they have in common? Have you encountered any single stories that have been applied to you? What about any you may have held? Can you identify the source? What role, if any did the media play in fostering the development of the single story? What can be done to change single stories and ethnocentrism, and how do these concepts affect communication?