(6) Coordinating with appropriate Federal departments and agencies. (7) Other activities as determined necessary by the Secretary. (c) Rule of construction Nothing in this section shall be construed to alter or supersede the authority of the Secretary of Agriculture relating to food and agriculture. . (b) Clerical amendment The table of contents in section 1(b) of the Homeland Security Act of 2002 is amended— (1) by striking the items relating to sections 523, 524, 525, 526, and 527