Michelle Martin interviews Robin Hamilton about her film "This Little Light of Mine: The Legacy of Fannie Lou Hamer" (2015), a documentary short that explores the life of an impoverished sharecropper who became a powerhouse in the battle for the right to vote in Mississippi during the Civil Rights Movement. For transcript, captions, and more information, visit www.loc.gov/today/cyberlc/feature_wdesc.php?rec=7049