Para uma compreensão das consequências da concentração

«In 2002, when a train passing trough Minot derailed, releasing a toxic cloud of anhydrous ammonia fertilizer, local police tried to reach someone at the stations to get word about about the danger. There was no one at the studios of KCJB, the area's designated emergency broadcaster. The station was on automatic, running satellite-fed programming from Clear Channel. Even if there had been someone on duty, it's not clear how the station would have responded: among Clear Channel's six stations in Minot, there was only one full-time news staffer.» (Fisher, 2007: 282-283)