People interlock hands on the Arthur Ravenel Jr. Bridge in Charleston, S.C., a few days after nine black churchgoers were killed by a white shooter in June. A new PBS NewsHour/Marist poll finds attitudes about opportunities in the U.S. for blacks and whites contrast along racial lines. The poll will be discussed during PBS' America After Charleston broadcast Monday night. Brendan Smialowski/AFP/Getty Images hide caption

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Brendan Smialowski/AFP/Getty Images

Jim Lehrer, when he moderated the the first 2008 presidential debate, at the University of Mississippi. David McNew/Getty Images hide caption

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David McNew/Getty Images