of national security and applicable provisions of law. (iii) Finality Each decision of a panel established under subparagraph (A) shall be final but subject to appeal and review under subsection (c). (D) Access to classified information The head of an agency that establishes a panel under subparagraph (A) shall afford access to classified information to the members of the panel as the head determines— (i) necessary for the panel to hear and review an appeal under this subsection