>> reporter: closing out the olympic ceremony, the reveal of the torch berer to light the cauldron. naomi osaka in recent months facing her own very public mental health challenges. perhaps the perfect representative for the xxxii olympiad, overcoming postponement and a pandemic to showcase the olympic spirit. will ripfully, thank you. >> just ahead, despite having only weeks to go before the united states fully leaves afghanistan, the u.s. is conducting airstrikes. is this the new normal moving forward? we'll discuss after a quick break. stay with us. itivity and gum gives us a dual action effect that really takes care of both our teeth sensitivity as well as our gum issues. there's no question it's something that i would recommend. what does it mean to be a hero?