Photojournalism:

"Photojournalists want to give a voice to the voiceless" -Power of Photojournalism on YouTube.

Creates a more emotional impact: "The power of photojournalism can effect social change, it has been proven in the past and it continues to hold true today." "More immediate response" "Being able to communicate with people on a different level" "An instant insight into other people's lives" "Photography is a universal language" "Strength of an image, closest proof of reality" "It's about moments". http://youtu.be/2i9H7FEw338

Quotes start at 7:38.