Excerpts From "American Ground: Unbuilding the World Trade Center"
Atlantic, The, October, 2002 by William Langewiesche
The tribalism that grew up on the pile had origins so primitive that they can only be understood as instinctual. At the core was an us-versus-them mentality brought on by the mere act of donning a uniform. Whether as firefighters or as the two sorts of police (city and Port Authority), the uniformed personnel at the site were generally drawn from the same white "ethnic" outer-borough neighborhoods and families, but as members of their respective organizations they had learned to distrust and resent the others.
The hostility was historical, and because it was strongest on the lowest levels, among the rank and file, it had proved impossible to root out. People at the site referred to it alliteratively as the Battle of the Badges. Across the years it had led to frequent arguments over turf and occasional bouts of outright obstructionism at emergency scenes. At the Trade Center it had ...