Nuke Mecca?

Did George W. Bush secretly threaten to liquidate Mecca if the US were attacked again? Some think so:

Why hasn't Osama bin Laden's terror network executed an attack on U.S. soil since 9-11?
Simple, says Dr. Jack Wheeler, creator of an acclaimed intelligence website dubbed "the oasis for rational conservatives": The U.S. has threatened to nuke the Muslim holy city of Mecca should the terror leader strike America again.
On his website, To the Point, Wheeler explains how the Bush administration has identified the potential of wiping Mecca off the map as bin Laden's ultimate point of vulnerability – the Damoclean Sword hanging over his head.

To the Point is a fee-based site so I couldn't see what they were about or have previously written. However, this is not as crazy as it may sound. If Bush--through back channels--indicated to the Saudi's that he would destroy the holiest site in Islam as well as a very important part of Saudi tourism and history, perhaps they passed the word around to those who were planning to hurt the US.

Via Chris.