Duluth teachers, district grapple with how to move on from 'Mockingbird'

Kristin Warmanen, Stu Sorenson and Susan van Druten.
Kristin Warmanen, Stu Sorenson and Susan van Druten, English teachers at Duluth East high school, who have fought to keep To Kill a Mockingbird in the curriculum, and complained about the process to select a replacement.