Fannie Mae and Freddie Mac got rescued!  And although different people will respond to that statement in different ways, it does deserve the exclamation mark, as the effects of the development look to be huge. We can start with the most easy-to-measure thing: the Dow, which began this morning about 320 points above where it closed on Friday.  Not all of the gains have stuck, but the Dow remains up around 289 points at this moment. Then there's what the takeover might ...