II 115th CONGRESS 2d Session S. 3179 IN THE SENATE OF THE UNITED STATES June 28, 2018 Ms. Cortez Masto (for herself and Mr. Toomey ) introduced the following bill; which was read twice and referred to the Committee on Banking, Housing, and Urban Affairs A BILL To require the Comptroller General of the United States to carry out a study on how virtual currencies and online marketplaces are used to buy, sell, or facilitate the financing of goods or services associated with sex trafficking or drug trafficking, and for other purposes.