Schwartz, Mosche. The Department of Defense?s Use of Private Security Contractors in Iraq and Afghanistan: Background, Analysis, and Options for Congress In Congressional Research Service Report. Washington, D.C.: Congressional Research Service, 2009.

Elsea, Jennifer K., Mosche Schwartz, and Kennon H. Nakamura. Private Security Contractors in Iraq: Background, Legal Status, and Other Issues In Congressional Research Service Report. Washington, D.C.: Congressional Research Service, 2008.