Logos vs. Pathos

As I mentioned in class, the recent gun control debates offer some great examples for us in examining how rhetoric is being used to sway public opinion on both sides. A friend of mine re-posted this piece on twitter today about seeing the photographs of the children killed in Newtown: "Photos of Sandy Hook Would Change Debate." Her accompanying comment was: "Would releasing the photos prove a point, or would it be pandering to pathos?" Good question. The photos are technically evidence (logos) which could show the reality of the damage inflicted by certain types of weapons. Yet, could people have anything but an emotional response to these pictures and would that hamper their ability to process the facts? What do you think?