part of the
international cooperative activities authorized in this
section, the Under Secretary, in coordination with the Chief
Medical Officer, the Department of State, and appropriate
officials of the Department of Agriculture, the Department of
Defense, and the Department of Health and Human Services, may
enter into cooperative activities with foreign countries,
including African nations, to strengthen American preparedness
against foreign animal and zoonotic diseases overseas that
could harm the Nation's agricultural and public health sectors
if they were to reach the United States.
(g) Construction; Authorities of the Secretary of State.--
Nothing in this section shall be construed to alter or affect
the following provisions of law:
(1) Title V of the Foreign Relations Authorization
Act, Fiscal Year 1979 (22 U.S.C. 2656a et seq.).
(2) Section 112b(c) of title 1, United States Code.
(3) Section 1(e)(2) of the State Department Basic
Authorities Act of 1956 (22 U.S.C. 2651a(e)(2)).
(4) Sections 2 and 27 of the Arms Export Control
Act (22 U.S.C. 2752 and 22 U.S.C. 2767).
(5) Section 622(c) of the Foreign Assistance Act of
1961 (22 U.S.C. 2382(c)).
(h) Authorization of Appropriations.--There are authorized
to be appropriated to carry out this section such sums as are
necessary.

TITLE IV--DIRECTORATE OF BORDER AND TRANSPORTATION SECURITY

Subtitle A--Under Secretary for Border and Transportation Security

SEC. 401. [6 U.S.C. 201] UNDER SECRETARY FOR BORDER AND TRANSPORTATION
SECURITY.

There shall be in the Department a Directorate of Border
and Transportation Security headed by an Under Secretary for
Border and Transportation Security.

SEC. 402. [6 U.S.C. 202] RESPONSIBILITIES.

The Secretary, acting through the Under Secretary for
Border and Transportation Security, shall be responsible for
the following:
(1) Preventing the entry of terrorists and the
instruments of terrorism into the United States.
(2) Securing the borders, territorial waters,
ports, terminals, waterways, and air, land, and sea
transportation systems of the United States, including
managing and coordinating those functions transferred
to the Department at ports of entry.
(3) Carrying out the immigration enforcement
f