In Israel s Silent Defender, Brigadier Generals (Res.) Amos Gilboa and Ephraim Lapid have compiled thirty-seven essays written by experts and leaders of Israeli intelligence, among them high-ranking analysts and J2s, commanders of human intelligence (HUMINT), signal intelligence (SIGINT), visual intelligence (VISINT) and open source intelligence (OSINT) units, and heads of the Israel Defense Intelligence (IDI), the Mossad and the Shabak.
