Bao Bao panda cub to be separated from mother at National Zoo

Bao Bao at the Smithsonian National Zoo is approaching a big turning point in her life: leaving her mother to live on her own. Take a behind-the-scenes look at a moment that's emotional but essential for the 18-month-old panda. Jan Crawford reports on this bittersweet rite of passage, only on "CBS This Morning."