>Every unhappy family might be unhappy in its own way, but the same isn't quite true of every unhappy euro country. The common currency's troubled economies all relied on foreign borrowing during the boom, and all went kaput when that money disappeared during the bust. But, as Michael Lewis put it, not all piles of borrowed money were created equal. Greece got a government bubble; Spain and Ireland got housing bubbles; Italy didn't even get a bubble, just anemic growth -- and Portugal got one of the quietest catastrophes in economic memory.