II 115th CONGRESS 1st Session S. 606 IN THE SENATE OF THE UNITED STATES March 9, 2017 Mr. Nelson (for himself, Mr. Blumenthal , Ms. Klobuchar , Mrs. Gillibrand , Mr. Cardin , Mr. Casey , and Mr. Brown ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend the Internal Revenue Code of 1986 to prevent taxpayer identity theft and tax refund fraud, and for other purposes.