From the Document: "The use of Unmanned Aerial Vehicles (UAVs) to improve border security is a technique that has garnered congressional attention. This report examines the strengths and limitations of deploying UAVs along the borders and related issues for Congress. This report is not intended to provide in-depth information regarding technical or military capabilities of UAVs, but to discuss their application at the border. This report will be updated as events warrant."
CRS Report for Congress, RS21698