AdvertisementAnalysisWhy Your Brain Wants To Help One Child In Need — But Not MillionsNovember 05, 2014Shankar VedantamfacebookEmailSaah Exco was found alone on a beach in Liberia's West Point slum, naked and abandoned and likely an Ebola victim.Research suggests the story of one needy individual motivates charitable donors more than statistics about millions of sufferers. (NPR)