Is the secession thing a well-explored idea in US politics? The red-states/blue-states map looks very tidily geographically split, and the last time there was such a tidy geographical voting split in the UK (the Thatcher era: England Conservative, Scotland Labour) the Scots got really pretty serious about secession. I just wonder whether it's a tired old "can't happen" in the US, or whether it's actually conceivable to some people...

Peter