From CNBC: Dave Clark, Amazon’s CEO of worldwide consumer, told CNBC on Monday that the company is on track to become the nation’s largest delivery service by the end of 2021 or early 2022. Analysts have long predicted Amazon would overtake carriers like UPS, FedEx and the U.S. Postal Service, thanks to its increasingly in-house network of planes, trucks, vans and ships … (click to read more)