51.   He was assigned to PATH in Jersey City, and when the attack occurred he was told to stay put.

52.   He was in a subway station below the World Trade Center, when the attack occurred.

53.   He said two other men implicated were already in jail when the attack occurred, but he refused to provide further details.

54.   If a smallpox attack does occur, Thompson said, current plans call for vaccinating only people exposed to the disease and others in contact with them.

55.   If an attack did occur, thousands of doses of antibiotics would be required in one location very quickly.

56.   If another attack occurs in the United States, he must contend with the aftermath.

57.   In February, the FBI issued a warning that terrorist attacks might occur in the United States or against American interests in Yemen.

58.   India insisted that the air attacks occurred solely within its part of Kashmir, and were aimed at Afghan mercenaries supported by Pakistan.

59.   It also did not indicate where or how such an attack might occur.

60.   It appeared the international fugitive was videotaped in daylight before the attacks occurred.