Within the national security community, Israel is well known for its assassination and black propaganda capabilities. On the intell side, however, those in the know say it is actually the US that provides Israel with the good stuff. The Intercept just reviewed a new expose on Israeli assassination ops.
"... As Ronen Bergman makes clear in his penetrating exposé of Israel’s mostly secret assassination program, “Rise and Kill First: The Secret History of Israel’s Targeted Assassinations,” the agents who Israel sent out to murder its enemies were never very funny. Israel is a rarity among nations: Rather than confine its assassins to the shadows, it promotes them to prime minister. Bergman’s history records extra-judicial, face-to-face murders by Menachem Begin, Yitzak Shamir, Ariel Sharon, and Ehud Barak, all of whom rose to head the Israeli government. This meticulously researched book, written over seven and a half years, exposes a state apparatus that blurs distinctions between intelligence-gathering and operations, soldiers and assassins, politicians and killers, yet claims more triumphs than defeats....."