vulnerable. we re talking, of course, about the children of haiti. tens of thousands of boys and girls who are in desperate need of help. many are orphans, all are survivors of a nightmare that may stay with them for the rest of their lives. that s why unicef has therapists on the ground to talk to the kids, to try to comfort them. ivan watson reports. reporter: a song and a dance for children who have witnessed unspeakable horrors. these are child survivors of the earthquake, who now laugh and clap as a child psychologist leads them through the hatian hokey pokey. francois calls this therapy. [ speaking foreign language ] reporter: francois is part of a team of hatian social workers