On retrouve le profit quand on recherche les causes
Here’s What Happens When Two Crew Members Are Operating 141 Freight Cars | The New Republic
▻https://newrepublic.com/article/170572/east-palestine-derailment-crew-shortage
[…] the “crew” (all of whom, thankfully, survived the derailment) consisted of two Norfolk Southern rail workers plus one trainee. That’s 47 cars per person. Two crew members is the minimal number required on every freight train under a regulation proposed last July by the Federal Railroad Administration, or FRA. Unbelievably, there is currently no regulatory requirement on crew size.
[…]
Management was insistent that rail workers not be granted the minimally decent benefit of sick days because that would require them to hire more people, and the big “Class I” carriers are all about getting rid of workers, not hiring more.