SANTA TERESA, N.M. – Life in the borderland, as the greater El Paso-Ciudad Juárez area is called, isn’t always easy. But there’s a place west of the metropolitan area along the U.S.-Mexico border that has found a balance. It’s the rare kind that involves a lot of dirt, a little political red tape and a few moos. Cattle come and go from one country to the other at the Santa Teresa International Export/Import Livestock Crossing in southeastern New Mexico. The site is one of two along the New Mexico-Chihuahua border, and the exchange of livestock involves regulation from such agencies as the U.S. Department of Agriculture, the U.S. Food and Drug Administration, SAGARPA (the Mexican equivalent of the USDA) and customs offices of both countries.