Amid the media mourning and eulogizing of Fidel Castro, on Monday, the network morning shows turned to worrying about the impact President-elect Donald Trump would have on American/Cuban relations, declaring the opening of diplomatic relations with the authoritarian regime to be the “centerpiece†of President Obama’s “legacy.†On NBC’s Today, correspondent Andrea Mitchell – who on Sunday fondly reminisced over her past meetings with Castro – proclaimed: “The White House sees Obama’s opening to Cuban as the centerpiece of his legacy. Direct commercial flights starting this week, postal service with the U.S., credit cards and banking, internet service. Cracks in...