"Salaries and benefits make up 80 percent of the Post Office's budget. By comparison, FedEx spends 43 percent of its budget on labor, while UPS spends 63 percent, according to Businessweek. Why the disparity? As the magazine put it, "USPS has historically placed the interests of its unions first."<p>You can't simply compare the USPS with FedEx or UPS. Neither of the latter provide regular deliveries. How much would it cost FedEx to have a large enough workforce to visit a significant fraction of the homes in the US every single workday? For that matter, doesn't UPS and/or FedEx have an agreement where UPS does the final delivery of some of the packages, precisely because USPS has most people?<p>Without that comparison, that comment comes across as a gratuitous slam against unions.