A "joke" is one thing her comment was not ! She might have gotten away with it as a "brainstorming of ideas", but her spokesperson obviously didn't think so when he tried to cover for her. And Perdue wouldn't say she hoped others supported her "joke", so it seems pretty clear she was serious.
I'm not sure why I'm trying to give her the benefit of doubt.....she's a Dem. who sees an apacolypse descending in Nov. '12.