Counterterrorism/Homeland Security/Security StudiesContributors: Dr. John Arquilla ? Jeffrey "Skunk" Baxter ? Matt Begert ? Dr. Stefan Brem ? Michael Brooks ? Dr. Robert J. Bunker ? Rick Y. Byrum ? Lisa J. Campbell ? Irina A. Chindea ? Dr. Martin van Creveld ? James P. Denney ? Matthew G. Devost ? T. Kessara Eldridge ? Adam Elkus ? Dr. Fadi Essmaeel ? Dr. Christopher Flaherty ? Phillip W. Fouts ? Dr. Daveed Gartenstein-Ross ? Dr. Russell W. Glenn ? Scott Gerwehr ? Dr. Lester W. Grau ? Thomas Greco ? Dr. Daniel S. Gressang IV ? Dr. Rohan Gunaratna ? Dr. Thomas X. Hammes ? Jennifer (Demmert) Hardwick ? Daniel P. Heenan ? Dr. Brian K. Houghton ? Ali A. Jalali ? Brian Michael Jenkins ? Dr. Peter Katona ? Hal Kempfer ? Dr. David Kilcullen ? James T. Kirkhope ? Dr. Scott P. Layne ? Ernest (Ernie) J. Lorelli ? Dr. Prem Mahadevan ? Paul M. Maniscalco ? Kevin R. McCarthy ? Jason Pate ? William C. Patrick III ? Ralph Peters ? Dr. Raymond Picquet ? Caitlin Poling ? Byron Ramirez ? John Robb ? Dr. David Ronfeldt ? Mitchell D. Silber ? Dr. Joshua Sinai ? Dr. Erroll G. Southers ? Dr. John P. Sullivan ? Michael Tanji ? Dr. Gregory F. Treverton ? Donald E. Vandergriff ? G.I. Wilson