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A congressional probe of 
ZPMC cargo cranes deployed at ports throughout the US has found communications equipment — such as cellular modems — that doesn’t appear to support normal operations, fueling concerns that the foreign machines may pose a covert national-security risk.
Over a dozen cellular modems were found on crane components in use at one US port, and another modem was found inside another port’s server room. Some of the modems had active connections to operational components to the cranes.

While it isn’t unusual for modems to be installed on cranes to remotely monitor operations and track maintenance, it appears that at least some of the ports using the ZPMC-made equipment hadn’t asked for that capability.
wsj.com/politics/natio
ZPMC cargo cranes deployed at ports throughout the US has found communications equipment — such as cellular modems — that doesn’t appear to support normal operations, fueling concerns that the foreign machines may pose a covert national-security risk.
Over a dozen cellular modems were found on crane components in use at one US port, and another modem was found inside another port’s server room. Some of the modems had active connections to operational components to the cranes.

While it isn’t unusual for modems to be installed on cranes to remotely monitor operations and track maintenance, it appears that at least some of the ports using the ZPMC-made equipment hadn’t asked for that capability.
wsj.com/politics/natioポストを翻訳
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