few years ago, one of his sons told me -- i think it was george w. -- that his dad had been on his deathbed, doctors thought he would not make it, and he rallied himself. he just had this fierce impulse, desire to live, the will, and he willed himself back into life, according to the son. and they all, the family, were just stunned by how he did that. so he's putting up a fight. he will put up a fight. i know he's lonely without barbara, but he does have this inner strength. >> jamie, david was referencing his time during world war ii. just reading about his exploits during the war, you know, his plane badly hit, he still delivers the payload of bombs in this really difficult battle in the pacific. he parachutes out along with one other person. that person's parachute didn't open. he survives on a raft being circled by aircraft to protect him until a submarine actually picks him up.