Prior to 9/11 several hundred israeli spies posing as "art students" were found attempting to enter secret government installations, and appeared at the houses of government operatives who undercover or do not have public information about their locations. This was funded by ecstacy dealing.
>https://www.salon.com/2002/05/07/students/
>Reports of the mysterious Israelis with an inexplicable interest in peddling art to G-men came in from more than 40 U.S. cities and continued throughout the first six months of 2001. Agents of the DEA, ATF, Air Force, Secret Service, FBI, and U.S. Marshals Service documented some 130 separate incidents of “art student” encounters. Some of the Israelis were observed diagramming the inside of federal buildings. Some were found carrying photographs they had taken of federal agents. One was discovered with a computer printout in his luggage that referred to “DEA groups.”
>In some cases, the Israelis visited locations not known to the public — areas without street addresses, for example, or DEA offices not identified as such — leading authorities to suspect that information had been gathered from prior surveillance or perhaps electronically, from credit cards and other sources. One Israeli was discovered holding banking receipts for substantial sums of money, close to $180,000 in withdrawals and deposits over a two-month period. A number of the Israelis resided for a period of time in Hollywood, Fla. — the small city where Mohammed Atta and three terrorist comrades lived for a time before Sept. 11.