Artist Bisa Butler on Creating New Narratives through "Portrait Quilts"

'Artist Bisa Butler has been called a modern-day Griot – but instead of using words to tell stories, she uses stitches and cloth. Her quilts have graced the covers of magazines and she created the striking illustration for the soon-to-be-released book Unbound, the memoir of activist and Me Too movement founder Tarana Burke. Nancy Chen of CBS Mornings reports.'