on Homeland Security and Governmental Affairs of the Senate a plan, that includes metrics, for the Department to address morale and employee retention challenges within the office. (c) National Technical Nuclear Forensics Center Not later than 120 days after enactment of this Act, the Assistant Secretary for Countering Weapons of Mass Destruction shall submit a report on implementation of paragraphs (11) and (12) of section 1923(a) of the Homeland Security Act. (d) Notice of Delay Should the Secretary fail to comply with provisions of subsection (g) of section 2 of Public Law 115–387 by the deadline listed therein, the Secretary shall provide the Committee on Homeland Security of the House of Representatives and the Committee on Homeland Security and Governmental Affairs of the Senate with written notice not later than one week following the deadline listed in subsection (g), specifying the reasons for the failure, and comply with the provisions of subsection (g) within two weeks of the delivery deadline of said notice. Nothing in this section shall be construed to limit, or otherwise affect the reporting required under subsection (g). 117. Coordinator for unmanned aircraft systems countermeasures (a) In general Title III of the Homeland Security Act of 2002 ( 6 U.S.C. 181 et seq.) is amended by adding at the end the following new section: 321. Countering Unmanned Aircraft Systems Coordinator (a) Coordinator The Secretary shall designate an official of the Department as the Countering Unmanned Aircraft Systems (UAS) Coordinator (in this section referred to as the Coordinator ) to coordinate with relevant Department offices and components, including the Office for Civil Rights and Civil Liberties and the Privacy Office, and other relevant Federal agencies, as appropriate, on the development of policies and plans to counter threats associated with UAS, including relating to the following: (1) Countering UAS that may be used in a terrorist attack. (2) Promoting research and development of counter UAS technologies.