A Car Chase, Secret Talks and Second Thoughts - NYTimes.com: But as the two vehicles were about to converge, the Americans noticed Chinese security cars tailing them, one behind the embassy car, the other behind the car with Mr. Chen and his friend, an American official who was briefed on the events said.
It was clear the handoff would have to happen in a rush. As Mr. Chen’s car moved into an alley, the embassy vehicle drew alongside, and the lawyer was pulled into the American vehicle. The Americans evaded the two Chinese cars and headed for the embassy, the official said.