Daylight saving in 2007

The Bush administration, with the infinite wisdom, decided to extend the length of daylight saving time by 4 weeks (most of the times) starting in 2007, in the name of energy saving. Yes, it will save electricity consumption, and the number of barrels of oil saved will be emphasized in all kinds of reports. However, productivity lost to system upgrade/change in the software/financial/aviation industries is much harder to measure and will less likely surface on these reports. Well, if it is energy they're trying to save, what about promoting public transportation, gradual tax increase on gasoline, subsidy to alternative fuel? Of course, they picked a route that would result in the least opposition from the public or big corporations.