Specter the Defecter

****UPDATE, 5/17**** -- If ever you wanted to know just what a prototypical example of the political windsock/weasel figure Arlen Specter is, well, look no further than this. Someone dug up an old C-Span video of Specter offering a 12-minute procedural rule (for the Senate to adopt) which would - get this - prevent sitting Senators from switching parties while in office. Why? - and why is the...