; (6) establishing regular opportunities for senior Administration leadership to engage with such transportation stakeholders regarding changes in the threat environment and how the Administration can offer security support to address such changes; and (7) briefing the Aviation Security Advisory Committee and the Surface Transportation Security Advisory Committee on the efforts of the task force established pursuant to subsection (a). (e) Briefing to Congress The Administrator of the Transportation Security Administration shall brief the Committee on Homeland Security of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate on the results of the analysis required under subsection (a) and relevant mitigation strategies developed in accordance with subsection (c).