Joe Garcia is a deputy special agent with the Department of Homeland Security and head of the San Diego Tunnel Task Force. His task force has found over 200 tunnels under the California-Mexico border since 1990. But every time they close a tunnel, smugglers build a new, better tunnel. "You can't fight markets," says David Shirk, associate professor of international relations and director of the Justice in Mexico project at the University of San Diego.
Rise of the Super Drug Tunnels: California's Losing Fight Against Smugglers
