The United States said Friday there had been progress but no final deal in talks with Japan that are crucial to advancing the ambitious 12-country Trans-Pacific Partnership trade deal. Negotiations failed to achieve a significant breakthrough just days before U.S. President Barack Obama, who has made the TPP a key goal of his administration, arrives in Tokyo on a state visit. Intense negotiations this week narrowed the gap between the two sides, but “considerable differences remain,” U.S.