ATLANTA - Looking for election-year support from black voters in the South, President Bush (news - web sites) was greeted at Martin Luther King's grave here Thursday by noisy demonstrators who chanted "Go home, Bush!" after receiving a warmer reception at a shabby church in New Orleans. As Bush placed a wreath on King's crypt, a low chorus of boos could be heard from across the street where 700 protesters beat drums and waved signs bearing slogans such as "War is not the answer" and "It's not a photo-op, George." Bush's four-stop swing through Georgia and Louisiana allowed him face...