in havana and wanting to burst into a flood after the obama administration opened up a total of 12 categories of travelers allowed to the isolated islands. >> when what you're doing doesn't work for 50 years, it's time to try something new. and our ship in cuba policy has the potential to end the

allowed to the isolated islands. >> when what you're doing doesn't work for 50 years, it's time to try something new. and our ship in cuba policy has the potential to end the mistrust in our hemisphere. >> reporter: wednesday, american diplomats arrived in havana to begin historic talks with their