Synopsis

"I have never witnessed such courage." Faced with repeated refusals to assist his besieged unit, Dakota Meyer defied the odds, repeatedly braving a hail of Taliban fire five times over to rescue his trapped comrades. His valor was recognized with the Medal of Honor, reports David Martin. A glimpse into the wild – Bob Simon examines the innovative "spy-cam" techniques employed by wildlife filmmakers, offering audiences an unprecedented view of animals – in this instance, polar bears – closer t