PLAINS, GA (WALB) – A doll found hanging off of a building in Plains is causing controversy.Controversial enough to get the United States Secret Service involved. Witnesses say it was an image of President Barack Obama with a rope around his neck and the display was found hanging in one of the city's most recognizable sites dedicated to former President Jimmy Carter.A few people were able to snap pictures of the black doll before it was taken down. The doll was hanging on a building on Main Street in Plains."I saw this stuffed thing hanging up," said Alonzo Davis, Plains...