Southwest Border Violence: Issues in Identifying and Measuring Spillover Violence
http://www.fas.org/sgp/crs/homesec/R41075.pdf
Analyzes violent crime data from the Federal Bureau of Investigation to attempt to determine whether southwest border violence tied to gangs and the illicit drug trade is spreading inside America. Also examines the supply/demand issues for drugs and the leading Mexican drug trafficking organizations. From the Congressional Research Service, posted by the Federation of American Scientists.