Wow! In less than three hours after my original posting, Bush's "Shadow Government" has become a "Bunker Government", courtesy of CNN.

Of course, it's still a bad idea for all of same reasons.

See the unattributed CNN article based on the heresay of an unidentified senior government official at:
Bunker U.S. government in place.

The lessons, according to this official, included a dramatic need to improve computer and other communications equipment and capabilities at the secure locations. Also, several departments are reviewing legal requirements to make sure those serving in the bunker government have the authority to carry out key government functions, should contact with Washington somehow be severed.