@A better way...

No, just disconnect the Pentagon. It amazes me that a target like the pentagon is connected al the time to the Internet. Why not hang a sign out announcing "Here we are, come f**k with our network!"

Email's important, but have they never heard of UUCP? Even Exchange can use UUCP, no? If they don't use Exchange they should: whenever the Sec of Defense or Prez needs to 'lose' an email message, they can blame it's loss quite plausibly on Exchange.

But, more likely, the Pentagon and Executive share a squirrel(ly)mail server with the CIA!