Not sure I am comfortable with the idea that if I go fishing in Canada or on vacation in the Caribbean that I am not protected from my own government. Sounds a lot like Fidel sinking makeshift rafts leaving for Florida...
I may be taking this a bit to the extreme, but our system was originally designed to prevent such danger. Of course our system didn't anticipate global terrorism, but I think there needs to be some checks and balances instead of an executive/military unilateral process as I understand it to be now.