PHOTO: The photo of Jerry Jones taken in 1957as he stood among a mob of White supremacists at North Little Rock High. The photo accompanied a story published in the Washington Post by David Maraniss and Sally Jenkins. Visit my website homepage, TomShanahan.Report By TOM SHANAHAN NBA megastar LeBron James speaks up on social issues from his sports throne. King James’ fame commands attention. Civil Rights advocate Ernest Green speaks from a crucible of America’s tumultuous desegregation years,…