Quote

"We are prepared, wherever they want, to discuss everything -- human rights, freedom of the press, political prisoners," Castro said Thursday.

My comment
I think Castro understands the relation between U.S and south America more than Persident Obama. I deeply believe that President Obama is too optmistic to his belief on creating a new relation to south America.
Creating a new relation can mean to open new discussing room toward many controvercial issue, such as human rights, illegal immergraion, and illegal drugs.

Castro and President Obama are from different political generation. As Castro has more foreign policy experiences than President Of U.S, south American countries certainly are well-prepared to discuss everything.
However, President Obama, who is another political generation, has less foreign politic experience, would be seemed too realism or less practical comparing to the experienced former leader.