I really hope no country ‘bags’ an American president...if they do, then it’s time to obliterate them period. I didn’t vote for Obama and hope he loses in 2012 but...no country should get away with assassinating an American president. If Castro really did this, he should be dead.
More seriously, why would we want to turn Cuba and its people into a thermonuclearly cleared piece of machineable glass-ceramic? It's just a handful of people there and in Chicago (or maybe now in Washington) that need dealt with.
A little waterboarding here and there I'm sure we can identify all of those who needed rounded up.
On the other hand, if Eric Holder is going to prosecute folks for building an information data base on terrorists and related scum, then who would do the job? Remember, Jack Bauer is just a fictional character.