company out of thailand. >> i'm a dive instructor for a living. we'll see sharks on a daily basis. i don't have any residual effects from it. but it was definitely a scary, traumatic event. christian sqoo is balancing on a narrow code more than 3,000 feet in norway. he's attempting a slack line walk when suddenly -- >> it's august 3, 2006. christian is atop keir rad mountain in southwest norway. he strung the line himself, testing each screw to make sure it's securely fashioned and edging along the wire, checking it inch by inch. his only protection if he falls during the attempt will be a safety harness attached to the line. if the cord or screws break,