whoa. you actually figured it out?
Then I take my hat off to you.
having found the answer, you are now officially...*does a little secret handshake obviously created on the spot* officially sworn to secrecy as to what the answer is. Should I find out that you have told, I will remove your name from the Wall of Greatness. See below for details as to what the Wall of Greatness is.
I would appreciate an email with your name, the date, and the actual answer (to prove you've got it...) so I can put your name on my Wall of Greatness. Anyone else can send in their name to go on the Wall of Greatness too, but it probably will not get entered without "help" from a dead president. if you do not feel comfortable sending your email to a rumoured stalker, or you do not have email, or you'd like to pretend you don't have email, or your email server has deleted your mailbox for an unspecified violation of your Terms of Service contract, or your sibling has gnawed on your keyboard and you are reluctant to touch it any more, or for any other variety of reasons you cannot email me, just tell me the answer in person, over the phone, etc., and I will still add you to the Wall.
Note: If I happen to know that you did not solve this puzzle by yourself, I will not add your name to the Wall of Greatness, as thou art obviously not Great enough to deserve it. You might still be in the running for the Wall of Quasi-Greatness, depending on how much help you had, and of what sort.
And now, as your reward for solving this puzzle...
You have been granted...
TUNNEL ACCESS