The moment that Clinton found out that she was to share a stage with Palin, she cancelled her appearance.

CENTERFORSECURITYPOLICY: Your abortions or your lives!

They share reservation systems so that if a flight is delayed or cancelled passengers can safely rebook on another (yes competitive) airline.

FORBES: Here's Why I'm Grateful Microsoft Doesn't Build Airplanes

As for share options and pension-fund appreciation, Mr Greenspan reckons that they are more than cancelled out by the mistreatment of expenditure on software and other information technology.

ECONOMIST: American profits