Millions saw the horrific images of the World Trade Center attacks. But a New Jersey homemaker saw something that morning that prompted an investigation into five young Israelis and their possible connection to Israeli intelligence. Maria ... had a view of the World Trade Center from her New Jersey apartment building. But as she watched the disaster, something else caught her eye. She saw three young men kneeling on the roof of a white van in the parking lot of her apartment building. They seemed to be taking a movie," Maria said. The men were taking video or photos of themselves with the World Trade Center burning in the background, she said. "They were like happy ... I thought it was very strange," she said. She found the behavior so suspicious that she wrote down the license plate number of the van and called the police. A statewide bulletin was issued on the van. The plate number was traced to a ... company called Urban Moving. A police officer pulled the van over, finding five men, between 22 and 27 years old, in the vehicle. Arresting officers said they saw a lot that aroused their suspicion. One of the passengers had $4,700 in cash hidden in his sock. Another was carrying two foreign passports. The five men identified themselves as Israeli citizens. The case was transferred ... into the [FBI's] Foreign Counterintelligence Section, which is responsible for espionage cases. The FBI believed Urban Moving may have been providing cover for an Israeli intelligence operation.