>Israelis celebrating 9/11 isn't a crime
Urban Moving Systems was a New Jersey front company that operated for many months before 9/11. When five of its employees were arrested, having been observed jubilantly celebrating AND photographing the attacks, including the first airplane crash which was initially thought to be an accident nationwide, the owner of UMS, Dominick Suter, quickly abandoned the offices and fled to Israel, his home country.
The FBI then raided the UMS office, retrieving numerous computers and documents, all of which remain classified. Meanwhile, the five 20something Israelis under questioning failed lie detector tests, gave elusive answers, etc. The FBI to this day has suspicions about these men. They were only freed when Israel Gov pressured the Bush admin to send them back. These Israelis then hired an Israeli lawyer to sue over their detainment, until the Feds presented more evidence, the media began to get interested, and that was that.
Keep in mind, UMS offices were abandoned, leaving behind unfulfilled contracts, customers' belongings in storage/transit, unpaid US employees (ex-employees came forward, noting UMS's high turnover rate and its favoring Israeli staffers), etc.
When they were arrested, all five Israelis had plane tickets to different international airports, clearing having arranged to leave the US after the attack. And again, read up on the declassified reports. Watch the interview with the NJ cop who arrested them. They had foreknowledge of the attack.
Another case of Israeli foreknowledge is the Israel-based messenger service Odigo, whose employees received warnings of a NYC attack before 9/11. Odigo granted the Washington Post interviews, in two different articles after 9/11, expressing bafflement at how this happened, and supposedly cooperated with authorities. Though no explanation was ever made public.
When Donald Trump said Muslims in NY/NJ celebrated 9/11, he was dogwhistling re:Dancing Israelis