China has harshly criticized Canada for the decision to exclude the giants Huawei and ZTE from its telecommunications network, starting with the 5G networks, calling it "groundless" because of "non-existent security risks". "China is firmly against all of this," foreign ministry spokesman Wang Wenbin thundered, assuring that Beijing "will take all necessary measures" to protect Chinese companies. While the Shenzhen group itself has defined the blockade of its services as a "political decision". Ottawa's decision is in line with those adopted by the United States, Australia, Great Britain, New Zealand, Japan and Sweden, which have already blocked or severely limited...