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200111511/ek/metro/scene/october20
-workers continue to work at ground zero: workers cut steel and prepare to haul it away
-firemen continuing to pour water on rubble where fires continue to burn undergound
-firefighters Lt. Brian McGuire and Robert Knapp use the GPS, a ground positioning systm devise, a handheld devise used to pinpoint exact locations of found objects at Ground Zero, site of World Trade Center bombing