By Brandy McDonnellA version of this story appears in the Life & Style section of The Oklahoman.'Politics of Seeing': National Cowboy Museum showing iconic images by pioneering photographer Dorothea LangeFrom farm fields harvested by migrant workers devastated during the Dust Bowl to internment camps crowded with Japanese-Americans during World War II, Dorothea Lange maintained an affinity for "the walking wounded," the people she saw struggling through hard times."Two events in her childhood ...Read more on NewsOK.com