US Contractor Alan Gross has been imprisoned in Cuba for the last four years on charges of spying. He’s now going on a hunger strike. He says it’s to protest both the Cuban and US government. Peter Kornbluh, of the National Security Archive, explains the real danger of Gross doing such a move, both for the contractor and for US Cuban relations.US Contractor Alan Gross has been imprisoned in Cuba for the last four years on charges of spying. He’s now going on a hunger strike. He says it’s to protest both the Cuban and US government. Peter Kornbluh, of the National Security Archive, explains the real danger of Gross doing such a move, both for the contractor and for US Cuban relations.