31.   The Navy also showed off a bigger robot probe that would carry out the next step, making sonar maps of the bottom, to locate the debris fields.

32.   The pingers are in the eastern debris field.

33.   The resulting debris field would fend off incoming missiles, or so the theory went.

34.   Tuesday, divers crossed yet another potential target off the list of those within the possible debris fields.

35.   Tulloch, who has collected hundreds of artifacts from the debris field surrounding the hull, has also vowed not to disturb the ship proper.

36.   Wagner, a Queens native, was assigned to comb the debris field at ground zero each day for possible artifacts.

37.   When they can dive, the Suffolk team is splitting its time between the nearly empty westernmost debris field and the richer area farthest east.

38.   A Coast Guard helicopter and small boats scoured a large debris field off Point Mugu as the sun began to set.

39.   A debris field of floating deck chairs and battered life boats marked the site Monday where a cruise ship sank in turbulent seas.

40.   Administration officials were not ruling out any possibilities until investigators could analyze radar data, the debris field, the flight recorders and information about people who had contact.