The icy relationship between the United States and Cuba is officially thawing, with a recent meeting of the countries' leaders.. the first time that's happened in over 50 years. Ties between the US and Cuba were severed in 1961 when the US tried to overthrow Fidel Castro's government...triggering the Cuban Missile crisis and a decades long stand-off over trade and diplomacy. So what is driving this rapprochment and what might the economic and political benefits be for both countries? Journalist and author Anne Louise Bardach, has written numerous books about Cuba, including 2009's "Without Fidel - a Death Foretold in Miami, Havana and Washington. She's interviewed Fidel Castro, his brother Raul as well as ordinary Cubans, dissidents and politicos.