David S. Katz is a former senior special agent with the Drug Enforcement Administration. He is an expert in conducting complex international criminal investigations, high-risk arrests, undercover operations, physical and technical surveillance, and intelligence analysis. He also spent four years as a primary firearms instructor at the FBI/DEA Academy, where he taught firearms and tactics. In addition, he is an expert in physical site security and the tactical use and deployment of bullet and explosive-resistant armor and glass. Ilan Caspi is a former senior Israeli Secret Service officer who has served in the Office of the Prime Minister of Israel and at the Israeli Embassy in Washington, D.C. During his assignment in Washington, he conducted a review of existing embassy security protocols and implemented improvements. He is a practiced expert in conducting threat assessments and analyzing security intelligence data. He has managed security operations at key facilities and public events and is a dignitary protection specialist.