The Border

The management of our relations with Mexico now looms as one of the most pressing foreign-policy challenges facing the United States. The problems confronting the two countries are great, and nowhere are they as starkly apparent as they are along the U.S.Mexican border a region that is by turns desolate and congested, despoiled and pristine, arid and lush, dirt poor and thriving, lawless and a police state. Our correspondent has filed two reports. The first, appearing this month,focuses on immigration, drugs, and law enforcement. The second, appearing next month, will focus on economic and environmental issues