Israel's undercover operations here, including missions to steal U.S. secrets, are hardly a secret at the FBI, CIA and other U.S. intelligence agencies. From time to time, in fact, the FBI has called Israeli officials on the carpet to complain about a particularly brazen effort to collect classified or other sensitive information, in particular U.S. technical and industrial secrets. The most notorious operation employed Jonathan Pollard, the naval intelligence analyst convicted in 1987 and sentenced to life in prison for stealing tens of thousands of classified documents for Israel. One of Israel's major interests, of course, is keeping track of Muslims who might be allied with Hamas, which rules the Gaza Strip, or Iran-backed Hezbollah, based in Lebanon. As tensions with Iran escalate, according to former CIA officer Philip Giraldi, Israeli agents have become more aggressive in targeting Muslims living in the United States as well as in operating against critics. There have been a number of cases reported to the FBI about Mossad officers who have approached leaders in Arab-American communities and have falsely represented themselves as 'U.S. intelligence,' " Giraldi wrote recently in American Conservative magazine. "Because few Muslims would assist an Israeli, this is done to increase the likelihood that the target will cooperate. It's referred to as a 'false flag' operation."