China quietly pulled a propaganda film celebrating its tech giants days after the US sanctioned one of them — and it could be troubling news for Huawei

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• The US Department of Justice is reportedly investigating the tech company Huawei on accusations of breaching sanctions on Iran.
• The investigation, which sources say has been running since 2016, could anger China.
• Last week the US slapped restrictions on another Chinese smartphone maker, ZTE, for numerous infractions including breaching Iran sanctions.
• But China appears to be just as angry at ZTE as it is at the US, slamming the company...