This May 24, 1961, photo provided by the Mississippi Department of Archives and History shows the booking photos of civil rights activist James Farmer, who was arrested — along with many others — during the Freedom Rides. AP hide caption

itoggle caption AP

A brain tumor is highlighted in blue on this MRI taken of the human brain. There were 43,800 new cases of brain tumors in the United States in 2005. National Cancer Institute hide caption

itoggle caption National Cancer Institute

The long-term effects of parenting aren't proven, says author Bryan Caplan, seen here with his family. Emily Korff/Veralana Photography hide caption

itoggle caption Emily Korff/Veralana Photography

Steven Wells and his daughter, Jennifer, spoke about her childhood at StoryCorps in Macon, Ga., where they have been living since 1996. StoryCorps hide caption

itoggle caption StoryCorps