Juan Pacheco is a native to Philadelphia. I recognized his work from the Museum of Contemporary Photography. He had a whole gallery to himself. His work mainly sympathized with the "minors" of America, and how one should be looked at more as an individual rather than a culture or race.
The below photograph is named De, Colores, it sympathizes with perception and how stereotypes are processed using the photographic image. De, Colores
LINK TO JUAN'S BIO: http://www.imdb.com/name/nm2085466/