Couldnt Break Him News Today

Of ptsd. they didnt call it that when he was struggling with it. but this part of the story, he falls apart. this is so inspirational to see. everybody falls apart at some point, right? maybe not having been through what he went through. but talk about that part of it. >> he was a naturally defiant person. his defiance got him through his entire life. he channeled that to sports and the defiance got him to the survival at sea. the endurance in the japanese prison camps but when he got home he co...

A wear shlable wearable system that powers hip and knee motion. >> this is what i use to communicate with the device. a small gray sensor right here. and so it senses when i lean forward and shift my weight from one foot to another. >> reporter: hes the first american and the first active duty service member to own one. a nearly $70,000 investment fda approved but not yet covered by insurance. for now, derek spends most of his time in his wheelchair, but some day he hopes to leave it behind. cap...