While the president wants his wall, U.S. Customs and Border Protection agents keep finding subterranean tunnels crossing the U.S. border with Mexico. Since August, four tunnels have turned up in areas where steel fencing sits along the boundary of the two countries. Two were complete, with openings into the U.S.
Separately, 376 migrants entered the U.S. on Jan. 14 by burrowing under the border fence near San Luis, Ariz. All sought asylum and surrendered to U.S. Customs and Border Protection agents.