Testimony presented before the House Homeland Security Committee, Subcommittee on Border, Maritime and Global Counterterrorism on March 8, 2007.
Wermuth, Michael A. and K. Jack Riley, The Strategic Challenge of Border Security. Santa Monica, CA: RAND Corporation, 2007. https://www.rand.org/pubs/testimonies/CT275.html.
Wermuth, Michael A. and K. Jack Riley, The Strategic Challenge of Border Security, Santa Monica, Calif.: RAND Corporation, CT-275, 2007. As of September 08, 2021: https://www.rand.org/pubs/testimonies/CT275.html