II 115th CONGRESS 1st Session S. 1600 IN THE SENATE OF THE UNITED STATES July 20, 2017 Ms. Hirono (for herself and Mr. Merkley ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend title II of the Social Security Act and the Internal Revenue Code of 1986 to make improvements in the old-age, survivors, and disability insurance program, and to provide for Social Security benefit protection.