Maynard Jackson, Atlanta's first black mayor, cast a huge shadow Tuesday over his white predecessors as the campaign to rename Atlanta's airport developed into raw racial politics. "This really shouldn't be about what the white business establishment would allow," said state Rep. "Able" Mable Thomas, a former Atlanta City Council member. "It's really what the strength of the African-American community will allow. What will we stand for? The real deal is we stood too long silent. Atlanta is being gentrified every day. So, while you do still have a majority, as Maynard would say, use the power you have today."...