amendment The table of contents in section 1(b) of the Homeland Security Act of 2002 is amended by inserting after the item relating to section 420C, as added by this title, the following new item Sec. 420D. National Subterranean Operations Program. . 435. Border enforcement security task force updates (a) Updated purpose Subsection (b) of section 432 of the Homeland Security Act of 2002 ( 6 U.S.C. 240 ) is amended— (1) in paragraph (1), by striking and after the semicolon at the end