The movie Roger Ebert calls "a first-rate thriller" tells the tale of a fateful train trip, with strangers offering to "exchange" murders, each killing the person the other wants dead.
As each eastbound train arrived at the front of the platform at Exchange Place last week, a PATH worker, Raishea Haines wrote down the number of the lead car.
Meanwhile, in the two under-river tubes that cross between Exchange Place and the World Trade Center, PATH workers have jury-rigged a system of walkie-talkies and train-spotting staffers to get service there running at all.