1. Short title This Act may be cited as the Build the Wall Now Act . 2. Resume construction of barriers and roads along United States and Mexico border (a) Definitions In this section: (1) Department The term Department means the Department of Homeland Security. (2) Physical barriers The term physical barriers has the meaning given such term in section 102(e) of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996, as added by section 3(5) of this Act. (3) Secretary The term Secretary means the Secretary of Homeland Security. (4) Tactical infrastructure