U.S. Government Accountability Office

U.S. Government Accountability Office. GAO-11-856R, Observations on the Costs and Benefits of an Increased DoD Role in Helping to Secure the Southwest Land Border. Washington, DC: Government Printing Office, 2011. http://www.gao.gov/assets/100/97733.pdf (accessed 18 April 2012).

This report assesses known costs and benefits of an increased DoD role to help achieve operational control over the southwest land border, and the known costa and benefits of an increased deployment of additional unmanned aerial systems and manned aircraft to provide surveillance.