AP Photo/Kin Cheung
Face masks are mandatory in some parts of China that are battling the coronavirus.
Facial recognition software on smartphones and in some stores and transportation centers is tripping up.
Some residents are venting their frustrations on social media.
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Some provinces in China have mandated that people wear face masks when they're out and about to avoid spreading the highly contagious coronavirus.
But face masks cover the lower half...
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