unimaginable cruelty i ve heard. it struck a chord as a father and a journalist and struck a chord with millions around the world. masked men came to his home, covered him with kerosene, and set this little boy on fire. it s hard to imagine that anyone could do that to a child. you know, youssif s story isn t so much about cruelty. it s about strength, it s about healing and courage. here s our story. reporter: now 9, it s hard to believe that this is the same youssif we met in baghdad four years ago. there s no trace of the sullen, with drawn, and angry boy he was once. no trace of the boy who could only speak a few words of english. i m still making it! i m doing like soccer games and practice. i never used to do that in my country. reporter: why didn t you do it in your country? because it was kind of dangerous. reporter: do you remember that day the guys attacked you? no. reporter: he used to, this was youssif, 5 years old at the time. he was attacked by mas