; and (B) an object that is marketed or sold to become or be used as the frame or receiver of a functional firearm once completed, assembled, or converted. . (2) Cross-border threats Not later than 180 days after the date of the enactment of this Act, the Under Secretary for Intelligence and Analysis of the Department of Homeland Security, in coordination with the Commissioner of U.S. Customs and Border Protection, the Director of U.S. Immigration and Customs Enforcement, and the heads of other appropriate Federal partners, shall develop and disseminate a homeland security threat assessment regarding cross-border threats associated with United States-sourced ghost guns and unfinished frames and receivers, with special attention to ghost guns and unfinished frames and receivers used by transnational criminal organizations involved in illicit activity that pose a threat to the border. (c) United States Secret Service activities Not later than one year after the date of the enactment of this Act, the Director of the United States Secret Service, acting through the Chief of the National Threat Assessment Center, in coordination with appropriate Federal partners, shall carry out research and issue public reports that provide guidance on how to prevent, prepare for, and respond to homeland security threats, such as an act of terrorism or targeted violence, associated with ghost guns. (d) Transportation Security Administration activities Not later than one year after the date of the enactment of this Act and annually thereafter, the Administrator of the Transportation Security Administration shall report to the Committee on Homeland Security of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate regarding the number of violations of subsection (a) of section 1540.111 of title 49, Code of Federal Regulations, and any other incidents involving the unauthorized carriage of a firearm at a passenger screening checkpoint, including information regarding which such violations