I don't know if there's any value in flipping it. I could see some value in developing it and ad revenue. Map out recruitment sites across our nation and give details how to sign up to the military? I don't think there is any copyright issues with this. If anything, maybe legal issues with the government? lol
I'm gonna say more than registration fee but not much more. Maybe $50.00-$100.00. You got to find somebody that wants to develop it or is patriotic enough to pay a higher price for it.
If the US government liked it, I would say priceless.