Washington Post did an article about it late September 2001 - so many people reported it to the FBI and investigation was conducted about it. Look it up.
The Washington Post said no such thing. One person reported Arabic looking men celebrating to the Jersey City police and gave them their License plate number and the Jersey City police reported it to the FBI. An ABP was put out on the white van which was found in Fort Lee and the "Arabic" looking men turned out to be Israelis.
So pathological liar Trump turned 5 Israelis celebrating into thousands and thousands of Arabs celebrating.
As Trump said, "Accusations are good enough".
Even better are some exerpts from the partially declassified police report.
Pursuant to this information, East Rutherford, NJ police authorities stopped an Urban Moving Systems van at a pre-positioned roadblock which was occupied by males similar to those described by witnesses above. The van had been traveling eastbound along State Route 3 in New Jersey. Following the stop, police detained five (5) individuals, all Israeli Nationals, on the grounds that they may have had information pertaining to the WTC explosions. The matter was later forwarded to FBI Newark, and the individuals were detained based violations of immigration their status [sic].
At the time of the vehicle stop, a search of the van and individuals was conducted. Seizure of the individuals' property yielded the following: a 35mm camera, several personal telephone-style notebooks, back packs, airline tickets with immediate travel dates for destinations world-wide, Israeli passports (in some cases, expired), a German passport, and thousands of dollars of cash. Student identifications later believed to be false were later found. Oddly, equipment typically used in a moving company's daily duties was not found, including work gloves, blankets, straps, ropes, boxes, dollies, rollers, etc.
Section 1, Page 35:
Film obtained from the 35mm camera of one of the detainees was later developed and processed by the Newark Division. The photos clearly corroborate [blank's] statements in that the Israelis are visibly happy on nearly all of the photgraphs [sic]. Further, the photos revealed that the Israelis had taken photographs from both the top of a van and from another location believed to be a parking lot near the Urban Moving Systems location in Weehawken, NJ.