Each quarter, corporations dutifully report the “Risk Factors” facing their company to the public and investors in SEC filings.

Amazon's annual reports usually first highlight the “intense competition” the retail juggernaut faces. In 2017, that predictably included “retail, e-commerce services, digital content and electronic devices, and web and infrastructure computing services.”

This year, Amazon added another industry in which they're facing competition — “transportation and logistics services,” as CNBC's Eugene Kim reported on Feb. 5.

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