The US government bans the sale and import of communication devices from Chinese smartphone manufacturers and network suppliers Huawei and ZTE. They posed an unacceptable risk to national security, the US telecommunications regulator FCC said on Friday. “As a result of our order, no new Huawei or ZTE devices can be approved,” FCC Commissioner Brendan Carr wrote on Twitter. It is also possible to revoke existing permits. It is the “first time in FCC history” that new devices have been banned due to national safety concerns.