Agriculture Secretary Brooke Rollins announced on Sunday that the U.S. is halting imports of livestock at ports of entry along the southern border in response to the “continued spread” of the “New

Agriculture Secretary Brooke Rollins called the safety of the nation’s food supply "a national security issue of the utmost importance."

To stop the spread of a flesh-eating parasite, U.S. officials have halted all imports of live cattle, horses and bison from Mexico. U.S. Secretary of Agriculture Brooke L. Rollins announced the import pause Sunday after parasitic New World screwworms were found in "remote farms with minimal cattle" in Mexico,