the Defense Threat Reduction Agency. (xix) The Chairman of the Joint Chiefs of Staff. (xx) The Secretary of State. (xxi) The Under Secretary of State for Arms Control and International Security. (xxii) The Administrator of the Federal Emergency Management Authority. (xxiii) The Secretary of Agriculture. (xxiv) The Secretary of Homeland Security. (B) Other stakeholders, as the Secretary determines appropriate. . 4. Scope of nuclear threats The Public Health Service Act is amended— (1) in section 319C–1 ( 42 U.S.C. 247d–3a )— (A) in subsection (b)(2)(A)(i), by inserting and with respect to the health consequences of the environmental impacts of nuclear war, as defined in section 2827 after nuclear threats