31.   Military roadblocks abound and unmarked cars carrying what are presumably security personnel careen around with submachine guns dangling ostentatiously from their windows.

32.   On Thursday, the Nassau police revised their policy on drunken-driving stops, banning stops by plainclothes officers in unmarked cars.

33.   Opposition politicians among the former hostages said they were being followed, their phones were tapped and their houses were watched by the unmarked cars of the intelligence service.

34.   Outside, police huddled in vans, unmarked cars and patrol cars, sharing curbs with chauffeured limousines.

35.   Plainclothes security policemen patrol every neighborhood and village, traveling in threes in unmarked cars with Kalashnikov rifles wedged between the seats.

36.   Plainclothes officers sat in unmarked cars, they said, and a small plane even repeatedly circled overhead.

37.   Police and FBI agents, following in a dozen unmarked cars, picked up Wais and gave chase.

38.   Seconds later, as they tried to drive off, the police rammed their van with an unmarked car and arrested the two men without a struggle.

39.   So for the next two hours, the agents, in an unmarked car, followed the man.

40.   Some police departments are experimenting with technological, if not magical, formulas to supplement the unmarked cars and, perhaps, replace the undercover officers.