and one of my students was, you know, would say things like i know cakarate. i'll lead the way out. so obviously, i said, well, okay, we need to just stay here right now. we need to be calm and still and quiet. just wanted my kids and me to live. that's all. i'm not a hero. >> so what makes a person step up in the face of danger? joining us now is clinical psychologist robin goodman. dr. goodman, we are constantly reminded in these horrific tragedies that as evil and awful and unimaginable as humanity is capable of being, there are far more heroes among us than we even know at any given time. what makes a person a hero? >> i know it's amazing that we can be a force for good in spite of the forces sometimes that seem to evil. one thing is, people -- it's not about risk taking in that way. we think people are reckless. it's risk taking in terms of i risk something for the greater good and they don't see it as heroic but taking responsibility for being able to make a difference, for doing something positive. and especially that they have an ability to make that change and affect -- hav