Section 359 - Reporting of Suspicious Activities by Underground Banking Systems (d) REPORT - Not later than 1 year after the date of enactment of this Act, the Secretary of the Treasury shall report to Congress on the need for any additional legislation relating to persons who engage as a business in an informal money transfer system or any network of people who engage as a business in facilitating the transfer of money domestically or internationally outside of the conventional financial institutions system, counter money laundering and regulatory controls relating to underground money movement and banking systems, including whether the threshold for the filing of suspicious activity reports under section 5318(g) of title 31, United States Code, should be lowered in the case of such systems.