US mulls adding five more China video surveillance firms to blacklist

US mulls adding five more China video surveillance firms to blacklist

An exhibitor demonstrates a fingerprint scanning device on a display of Alhua Technology video intercom products in the Zheijiang Dahua Technology Co. Ltd. pavilion at the CeBIT 2017 tech fair in Hannover, Germany, on Tuesday, March 21, 2017. Photographer: Krisztian Bocsi/Bloomberg

The U.S. is considering cutting off the flow of vital American technology to as many as five Chinese companies including Hangzhou Hikvision Digital Technology Co., widening the dragnet beyond Huawei to include world leaders in video surveillance.