II 115th CONGRESS 2d Session S. 3304 IN THE SENATE OF THE UNITED STATES July 31, 2018 Mr. Nelson (for himself, Mr. Schumer , Mrs. Feinstein , Mr. Blumenthal , Mr. Markey , Mr. Menendez , Mr. Van Hollen , Mr. Brown , Ms. Klobuchar , Mrs. Murray , Mr. Murphy , Mr. Reed , Mr. Booker , Mr. Schatz , Mr. Casey , Ms. Hirono , Mr. Kaine , Mrs. Gillibrand , Ms. Harris , Mr. Leahy , Mr. Carper , Ms. Smith , Ms. Baldwin , Mr. Sanders , Mr. Whitehouse , Ms. Warren , Ms. Duckworth , Mr. Coons , Ms. Hassan , Mr. Merkley , and Mr. Cardin ) introduced the following bill; which was read twice and referred to the Committee on the Judiciary A BILL To amend chapter 44 of title 18, United States Code, to prohibit the publication of 3D printer plans for the printing of firearms, and for other purposes.