"Those reports indicated that Zalman Shapiro, throughout the time he headed NUMEC, collaborated with a number of Israeli officials. They included people from the “Science Attaché” office at the Israeli embassy in Washington, D.C., and others from the Israeli intelligence agencies Shin Bet and Mossad, all believed to be part of Israel’s scientific intelligence organization (LAKAM), which collected nuclear technology in the United States to aid Israel’s nuclear weapons program."