The debate over whether to reform Social Security is full of idiosyncrasies. Here's a big one: No matter what fix we're talking about - partial privatization, raising the retirement age, means testing so millionaires forfeit benefits, tying benefits to inflation rather than wages, etc. - the most ferocious opposition comes from the demographic that won't be affected either way by any proposal being discussed at either end of Pennsylvania Avenue: Americans already 55 and over. If you can imagine that, you're already two steps ahead of the Bush administration. White House officials seem baffled that their biggest fight has turned...