Now Playing: 4-08-13 Marketplace

There’s no question the recently departed Margaret Thatcher remade the U.K. economy during her tenure, but how much of the Thatcher Revolution remains today? Plus, despite what you may think of Thatcher, hating her made plenty of folks rich. A look at the healthy business of hating Thatcher. Turning to the skies, airlines scored their second-best performance rankings in 23 years last year. How did that happen with all the mergers?