just separating these two boys and de-escalating the situation? so, there's so much to talk about with this video. >> and of course hearing the other boy in the video talking about the idea of him offering to be handcuffed too and not understanding, i mean, you've done a lot of research. he talks about kai, this is the black teenager, he talks about being scared. and you've done research on the treatment of black children. what are the ramifications of this long term? this is scarring and traumatizing not only for the black teen that was impacted but for others looking on. >> absolutely. there is a growing body of research documenting the extraordinary psychological trauma to black and brown children who are the frequent targets of police stops, frisks, violence of this nature. you know, young people become depressed and fearful and anxious and hypervigilant, meaning that they're always on guard and not trusting others.