A recent New York Times article confirms the second successful high-level infiltration and sabotage of a terrorist organization in the past few months.
Although I can no longer find the article, there was a really good one a couple months back about Boko Haram having been infiltrated by the Nigerian military/intelligence services. After years of working from inside Boko, this once low-level thug had become a top lieutenant in the organization, and was using sensitive Signals Intelligence (SIGINT) equipment to report on the location of high level Boko leaders for US/Nigerian assassination. He had apparently been successful more than once.
And then comes this article about Israeli infiltration of the Lebanese Hezbollah. Since I get a lot of questions about infiltration, I figured this is as good a time as any to start posting these stories.