Eli Lake, Columnist

U.S. Spies Think China Wants to Read Your E-Mail

The prospect of Chinese telecom Huawei working on the U.S. 5G cellular network raises alarms.

China's big brother?

Photographer: Kiyoshi Ota/Bloomberg

For more than a decade, the U.S. military and intelligence community has quietly warned that the world's largest telecom equipment manufacturer, Huawei, is an arm of the People's Liberation Army and that its phones, circuits and routers are instruments of Chinese eavesdropping.

Now these agencies are starting a formal review, led by the FBI and the NSA, examining the national security implications of Huawei's potential participation in building the U.S. 5G wireless network, according to current and former U.S. intelligence officials.