Ben-Ami Kadish (1924-2012) was an American mechanical engineer born in Connecticut, United States, who grew up in Petach Tikvah in Mandatory Palestine. As a young man, he fought with the Haganah paramilitary organization and served one year in the British military with the Jewish Brigade and three years in the United States Army Air Forces during World War II. He earned a degree in mechanical engineering from Northeastern University. Professionally, Kadish worked as a mechanical engineer for the U.S. Army's Armament Research, Development, and Engineering Center at Picatinny Arsenal in Dover, New Jersey, from October 1963 to January 1990, retiring as a supervisory engineer in the Fuze Division. From approximately 1979 to 1985, he acted as an unregistered agent for Israel, passing classified documents—including those related to nuclear weapons, a modified F-15 fighter jet, Patriot missiles, and U.S. missile defense systems—to Israeli handler Yosef Yagur, who photographed an estimated 50-100 documents at Kadish's residence in the Riverdale section of the Bronx, New York. Yagur was the same handler as Jonathan Pollard, whose espionage activities were concurrent, and Kadish maintained contact until about a month before his 2008 arrest. Arrested by the FBI on April 22, 2008, at age 84 (or 85 per some reports), he was charged with four conspiracy counts: to disclose national defense documents to Israel, to act as an Israeli agent, to hinder law enforcement communication, and to make false statements. Kadish pleaded guilty on December 30, 2008, to one count of conspiracy to act as an unregistered agent of Israel (maximum 5 years prison, $250,000 fine). On May 29, 2009, U.S. District Judge William H. Pauley III sentenced him to a $50,000 fine and no prison time, citing his age (85), infirmity (used cane), 23-year prosecution delay, and cooperation. In his statement, Kadish said, 'I'm sorry I made a mistake... It was a misjudgment. I thought I was helping the state of Israel without harming the United States.' He lived with wife Dorris in a retirement community in Monroe Township, Middlesex County, New Jersey; family members in Israel expressed shock at the allegations. Kadish died on July 16, 2012, at age 88, at University Medical Center of Princeton in Plainsboro, New Jersey, and was buried at Beth Israel Cemetery in Woodbridge, New Jersey.