Alan Gross makes a statement after arriving back in the United States on Dec. 17, 2014. A U.S. Agency for International Development subcontractor, Gross was imprisoned in Cuba for five years on espionage charges. He told NPR that Sen. Bernie Sanders visited him in detention and remarked that he didn’t understand why others criticized Cuba.

Alan Gross makes a statement  after arriving back in the United States on Dec. 17, 2014. A U.S. Agency for International Development subcontractor, Gross was imprisoned in Cuba for five years on espionage charges. He told NPR that Sen. Bernie Sanders visited him in detention and remarked that he didn’t understand why others criticized Cuba.