breaking news this morning. former cuban leader fidel castro dead at the age of 90. castro's defiance legacy began in 1959 when he led the cuban revolution. >> he became the president and it's believed during his rule castro survived several assassination teams. in 2008 after four decades in power, health problems finally forced him to resign and he named his brother raul as his successor. let's bring in philip peters, expert in cuban relations. philip, we've been watching miami here. overnight, there have been a lot of people on the streets there. many of them have been celebrating this, they've been shouting freedom. how quickly do you think we will see any sort of change in cuba? or really, at the end of the