his family says that bilal changed when he began attending a local salafi mosque. it was then that he began embracing radical ideas. >> my son is innocent. the people who manipulated him are reponsible. these godless people earn money with our young men and send them to their deaths. >> the local mosque has since shut down. its preachers have disappeared. leaving in their wake a family in shock and desperation. >> and that desperation is now sadly shared by many other families worldwide. so what role can families play in protecting young people? could they prepare their children better against the influences of radical preachers or internet propaganda? join us on facebook for your part in the discussion. now, it's called the gulf of california, but don't get confused. our destination is a stretch of water the size of uruguay situated between mainland mexico and a jutting peninsular. thought to be one of the most diverse seas on the planet, it is home to a unique and rich ecosystem which enjoys protected status in a variety of zones. those zones are good news for, a

aisha bilal runs naisse. >> people don't trust them.rally bad. >> reporter: a high furl of girls who walk the streets have a history of running away. drug addiction and prior victimization and truancy. they say school officials need to be trained on prevention. >> if they're aware, acknowledgeable i know the signs to look out for, they can really be out there at the forefront at the very first signs that this child is missing. >> i was raped and molested. >> reporter: melissa says her mother introduced her to a life on the street. she tells me she was living on a foster home when another girl recruited her into prostitution which led to drug addiction. >> i already had no self-worth at all. i had no one that loved me so i was like, well if no one is going to love me i might as well get money. >> reporter: feist credits a program she joined while behind bars to helping her turn her life around. now she and another girl run the drop off center. >> it's not just oakland california, it's everywhere. >> reporter: as for the 13-year- old we m