Prohibition on Secretaries of the Interior and Agriculture

The Secretary of the Interior or the Secretary of Agriculture may not impede, prohibit, or restrict activities of U.S. Customs and Border Protection on covered Federal lands located within 100 miles of the southern border, to execute search and rescue operations and to prevent all unlawful entries into the United States, including entries by terrorists, other unlawful aliens, instruments of terrorism, narcotics, and other contraband through the southern border.