From the thesis abstract: "Since September 11th 2001, there has been increased public concern and great political pressure to secure the border area between the United States and Mexico. New legislation increased funding and resources have poured into this effort to secure the border. New tactics and technology and a more active and evolving role by the military have followed to insure that the effort of securing the border is successful. But despite these increased efforts, it is still undetermined if these efforts are successful. This paper provides a brief history of border security, troop activity on the border, new approaches to secure the border, and what metrics are currently used to determine whether these efforts are successful."
Defense Technical Information Center (DTIC): http://www.dtic.mil/