Katie Couric’s unique combination of warmth, intelligence and empathy earned her the title of “America’s Sweetheart.” In this episode of “The Thread,” the trailblazing journalist -- the first woman to ever anchor a nightly network newscast –

reflects on the life lessons that have anchored her during her five-decade career in broadcasting. She poignantly describes how the heartbreaking loss of her husband to colon cancer led her to become a champion for early detection of the disease. By unashamedly sharing her own procedure on national television, Katie Couric was the first public figure to address the stigma surrounding colonoscopies – almost certainly saving many thousands of lives by sharing her painful and deeply personal story.